<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chavan, Subhash P.</style></author><author><style face="normal" font="default" size="100%">Pathak, Ashok B.</style></author><author><style face="normal" font="default" size="100%">Kalkote, Uttam R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Practical formal synthesis of camptothecin</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letter</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alkaloid</style></keyword><keyword><style  face="normal" font="default" size="100%">Anticancer</style></keyword><keyword><style  face="normal" font="default" size="100%">camptothecin</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">SEP</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">37</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">48</style></volume><pages><style face="normal" font="default" size="100%">6561-6563</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The synthesis of the DE ring of camptothecin using simple and inexpensive starting materials, employing an addition elimination reaction and selective esterification of an aliphatic carboxylic acid as key steps is described. (C) 2007 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">37</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.347</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pandey, Satyendra Kumar</style></author><author><style face="normal" font="default" size="100%">Pandey, Menaka</style></author><author><style face="normal" font="default" size="100%">Kumar, Pradeep</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Concise synthesis of protected (2S,4R)-4-hydroxyornithine</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Epoxide</style></keyword><keyword><style  face="normal" font="default" size="100%">Grignard reaction</style></keyword><keyword><style  face="normal" font="default" size="100%">hydroxyornithine</style></keyword><keyword><style  face="normal" font="default" size="100%">Jacobsen's HKR</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAY</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">20</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">3297-3299</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A short synthesis of the nonproteinogenic amino acid, (2S,4R)-4-hydroxyornithine is described. Starting from racemic benzyl glycidol, the scaffold of the target compound was constructed in high enantio- and diastereoselectivity using Jacobsen's hydrolytic kinetic resolution (HKR) and regioselective opening of an epoxide as key steps. (c) 2008 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">20</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.347</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Khan, M. S.</style></author><author><style face="normal" font="default" size="100%">Goswami, U.</style></author><author><style face="normal" font="default" size="100%">Rojatkar, S. R.</style></author><author><style face="normal" font="default" size="100%">Khan, Mohammad Islam</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Serine protease inhibitor from hemolymph of green mussel, perna viridis</style></title><secondary-title><style face="normal" font="default" size="100%">Bioorganic &amp; Medicinal Chemistry Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">hemolymph</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Perna viridis</style></keyword><keyword><style  face="normal" font="default" size="100%">protease inhibitor</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUL</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">14</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">18</style></volume><pages><style face="normal" font="default" size="100%">3963-3967</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Bioactivity guided fractions of cell-free hemolymph of bacterially challenged marine mussel, Perna viridis led to the isolation of a novel quaternary alkaloid 1, which was identified by its spectral data. The isolated molecule 1 has been found to be a potent serine protease inhibitor ( SPI) showing IC(50) and K(i) values of 102.5 and 97.1-104.68 mu M, respectively. The E(t)/K(i) value of SPI is 6.3, whereas E(t)/K(m) value is 1.04. The Van't Hoff analysis showed that the value of K(i) decreases with increase in temperature, and the binding of the inhibitor is entropically driven. (c) 2008 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">14</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.661</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jagdhane, Rajendra C.</style></author><author><style face="normal" font="default" size="100%">Shashidhar, Mysore S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Formal synthesis of valiolamine from myo-inositol</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Amino sugar</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbohydrate</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclitol</style></keyword><keyword><style  face="normal" font="default" size="100%">Inositol</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Valiolamine</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">41</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">67</style></volume><pages><style face="normal" font="default" size="100%">7963-7970</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;An efficient formal synthesis of racemic valiolamine starting from readily available myo-inositol is reported. In all the synthetic steps only one regioisomer is formed, which circumvents laborious purification of products. Regioselective benzylation of myo-inositol orthoformate, super-hydride mediated deoxygenation of a cyclitol derivative and stereoselective addition of dichloromethyllithium to an inosose are the key reactions in the synthesis. (C) 2011 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">41</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">3.04</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Venkataramasubramanian, V.</style></author><author><style face="normal" font="default" size="100%">Kiran, I. N. Chaithanya</style></author><author><style face="normal" font="default" size="100%">Sudalai, Arumugam</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Proline-catalyzed alpha-aminooxylation of beta-amino aldehydes: access to enantiomerically pure syn- and anti-3-amino-3-aryl-1,2-alkanediols</style></title><secondary-title><style face="normal" font="default" size="100%">Synlett</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">amino aldehydes</style></keyword><keyword><style  face="normal" font="default" size="100%">Asymmetric synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">catalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">diastereoselectivity</style></keyword><keyword><style  face="normal" font="default" size="100%">Enantioselectivity</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">FEB</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">3</style></number><publisher><style face="normal" font="default" size="100%">GEORG THIEME VERLAG KG</style></publisher><pub-location><style face="normal" font="default" size="100%">RUDIGERSTR 14, D-70469 STUTTGART, GERMANY</style></pub-location><volume><style face="normal" font="default" size="100%">26</style></volume><pages><style face="normal" font="default" size="100%">355-358</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A new synthetic method for enantioselective synthesis of syn 3-amino-3-aryl-1,2-alkanediols via praline catalyzed alpha-aminaoxn y ylation of beta-amino aldehydes des are described. This methodology is successfully applied to a concise and protecting group-free asymmetric synthesis of (-)-cytoxazone (+)-epi-cytoxazone and formal synthesis of N-thiolated 2-oxazolidinone.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">2.323</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Handore, Kishor L.</style></author><author><style face="normal" font="default" size="100%">Jadhav, Prakash D.</style></author><author><style face="normal" font="default" size="100%">Hazra, Bibhabasu</style></author><author><style face="normal" font="default" size="100%">Basu, Anirban</style></author><author><style face="normal" font="default" size="100%">Reddy, D. Srinivasa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Total syntheses and biological evaluation of (+/-)-botryosphaeridione, (+/-)-pleodendione, 4-epi-periconianone B, and analogues</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Medicinal Chemistry Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">antineuroinflammatoty agents</style></keyword><keyword><style  face="normal" font="default" size="100%">bohyosphaeridione</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">pleodendione</style></keyword><keyword><style  face="normal" font="default" size="100%">Total synthesis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">NOV</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">11</style></number><publisher><style face="normal" font="default" size="100%">AMER CHEMICAL SOC</style></publisher><pub-location><style face="normal" font="default" size="100%">1155 16TH ST, NW, WASHINGTON, DC 20036 USA</style></pub-location><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">1117-1121</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The total syntheses of (+/-)-botryosphaeridione, (+/-)-pleodendione, (+/-)-hoaensieremodione, 4-epi-periconianone B, and their analogues have been accomplished for the first time. All the synthesized target compounds were screened in neural anti-inflammatory assays using LPS induced microglia cells (N9). Among them, compounds 1 and 21 were identified as potential lead compounds for further profiling.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">11</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">3.355</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Shingare, Rahul D.</style></author><author><style face="normal" font="default" size="100%">Farhana, Sa Ada</style></author><author><style face="normal" font="default" size="100%">Reddy, D. Srinivasa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Multi-gram scale synthesis of hunanamycin A, an antibiotic natural product from the marine source</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antibacterial</style></keyword><keyword><style  face="normal" font="default" size="100%">Biomimetic synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Gram scale synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Riboflavin</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">32</style></number><publisher><style face="normal" font="default" size="100%">PERGAMON-ELSEVIER SCIENCE LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">57</style></volume><pages><style face="normal" font="default" size="100%">3662-3663</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A simple, practical, and biomimetic approach to access antibiotic natural product hunanamycin A starting from readily available inexpensive material Riboflavin is disclosed here. The present synthesis consists of three operationally simple, protecting group free steps and it is far superior when compared with the previous route. Using this route one can make multi-gram quantities of the natural product which will help in further biological assays, in particular exploring the potential of treating food infections. (C) 2016 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">32</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">2.347</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Raut, Gajanan N.</style></author><author><style face="normal" font="default" size="100%">Wagh, Sachin B.</style></author><author><style face="normal" font="default" size="100%">Reddy, D. Srinivasa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis of revised structure of klaivanolide (acetylmelodorinol)</style></title><secondary-title><style face="normal" font="default" size="100%">Arkivoc</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">acetylmelodorinol</style></keyword><keyword><style  face="normal" font="default" size="100%">Klaivanolide</style></keyword><keyword><style  face="normal" font="default" size="100%">leishmaniasis</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">ARKAT USA INC</style></publisher><pub-location><style face="normal" font="default" size="100%">C/O ALAN R KATRITZKY, UNIV FLORIDA, DEPT CHEMISTRY, PO BOX 117200, GAINESVILLE, FL 32611 USA</style></pub-location><pages><style face="normal" font="default" size="100%">116-122</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Klaivanolide (acetylmelodorinol) is an anti-leishmanial/anti-trypanosomal agent isolated from Uvaria klaineana and the structure was originally assigned as a 7-membered lactone with extended conjugation and S-configuration at the lactone junction. Very recently, the structure of klaivanolide was revised as previously known compound acetylmelodorinol. Now, we have synthesized the revised structure in racemic form using a short route.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">1.177</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Patil, Harshal S.</style></author><author><style face="normal" font="default" size="100%">Jadhav, Dipesh D.</style></author><author><style face="normal" font="default" size="100%">Paul, Ajay</style></author><author><style face="normal" font="default" size="100%">Mulani, Fayaj A.</style></author><author><style face="normal" font="default" size="100%">Karegaonkar, Shrikant J.</style></author><author><style face="normal" font="default" size="100%">Thulasiram, Hirekodathakallu V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Regioselective and efficient enzymatic synthesis of antimicrobial andrographolide derivatives</style></title><secondary-title><style face="normal" font="default" size="100%">Bioorganic &amp; Medicinal Chemistry Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acylation</style></keyword><keyword><style  face="normal" font="default" size="100%">Andrographolide</style></keyword><keyword><style  face="normal" font="default" size="100%">Antimicrobial activity</style></keyword><keyword><style  face="normal" font="default" size="100%">biocatalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Hemolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipase</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">28</style></volume><pages><style face="normal" font="default" size="100%">1132-1137</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Labdane diterpene andrographolide (1) is a major constituent of Andrographis paniculata and known to exhibit wide spectrum of biological activities. In this study, regioselective monoesters of (1) have been synthesized by using Amano lipase AK (Pseudomonas fluorescens) as a biocatalyst. Amano lipase AK was able to execute highly efficient esterification of hydroxyl group attached to C-14 carbon of (1) in presence of acyl donors. Among the various synthesized derivatives including two novel compounds such as andrographolide-14-propionate (3) and andrographolide-14-caproate (5) displayed antimicrobial activity against Staphylococcus aureus with low minimal inhibitory concentration (MIC) 4 mu g/mL and 16 mu g/mL respectively. Furthermore, they have shown low hemolysis activity at their respective MIC and increase in the permeability of the bacterial cell membrane as delineated by FITC uptake and SEM imaging studies. (C) 2018 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">2.454</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kulkarni, Akshay S.</style></author><author><style face="normal" font="default" size="100%">Ramesh, Eagala</style></author><author><style face="normal" font="default" size="100%">Reddy, D. Srinivasa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">One-pot oxidation of secondary alcohols to alpha-hydroxy ketones: application to synthesis of oxoaplysinopsin D, E, F, &amp; G</style></title><secondary-title><style face="normal" font="default" size="100%">European Journal of Organic Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">alpha-Hydroxylation</style></keyword><keyword><style  face="normal" font="default" size="100%">Hydantoin</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Oxoaplysinopsin</style></keyword><keyword><style  face="normal" font="default" size="100%">Retro-aldol</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">2021</style></volume><pages><style face="normal" font="default" size="100%">2188-2192</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A simple one-pot transformation of secondary alcohols to alpha-hydroxy ketones using pyridinium dichromate (PDC) in DMF has been developed and substrate scope tested with 25 compounds of hydantoin derivatives. Using this method, we have devised a common dihydroxy intermediate and synthesized four natural products oxoaplysinopsins D, E, F, and G for the first time.</style></abstract><issue><style face="normal" font="default" size="100%">15</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">3.021</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Das, Pronay</style></author><author><style face="normal" font="default" size="100%">Reddy, D. Srinivasa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Total synthesis of twelve membered resorcyclic acid lactones, (R)-penicimenolide A, (R)-resorcyclide and (R)-dihydroresorcyclide</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Macrocycle</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">organic synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Total synthesis</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">85</style></volume><pages><style face="normal" font="default" size="100%">132059</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Resorcyclic Acid Lactones or RALs are a class of fungal secondary polyketides isolated from a variety of fungal strains like Lasiodiplodia theobromae, Penicillium sp., Syncephalastrum racemosum etc. This class of macrocyclic lactones are found to exhibit a broad spectrum of biological activities and are of significant synthetic importance. Herein, we report the first total synthesis of (R)-penicimenolide A, twelve membered RAL (RAL12) isolated from Penicillium sp. (NO. SYP-F-7919). Besides, we also report the total synthesis of two other members, namely, (R)-trans-resorcyclide and (R)-dihydroresorcyclide. In the course of synthesis, we have utilized ring closing metathesis (RCM) as the key step in constructing the core macrolactone scaffold. (C) 2021 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;2.233&lt;/p&gt;</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Shelar, Santosh V.</style></author><author><style face="normal" font="default" size="100%">Argade, Narshinha P.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Wittig reactions of maleimide-derived stabilized ylides with alkyl pyruvates: concise approach to methyl ester of (+/-)-chaetogline A</style></title><secondary-title><style face="normal" font="default" size="100%">Synthesis-Stuttgart</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Amino acid</style></keyword><keyword><style  face="normal" font="default" size="100%">chaetogline A</style></keyword><keyword><style  face="normal" font="default" size="100%">dehydrative cyclization</style></keyword><keyword><style  face="normal" font="default" size="100%">maleimide</style></keyword><keyword><style  face="normal" font="default" size="100%">methyl pyruvate</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Wittig reaction</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">53</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;A facile synthesis of methyl ester of chaetogline A is reported starting from the corresponding methyl 1-methyltryptophanate-derived- maleimide. A stereoselective Wittig olefination with a carbonyl function in methyl pyruvate followed by phosphorous pentoxide-induced- regioselective dehydrative cyclization are the essential reactions. An acid-induced thermodynamically driven stereoselective beta- to alpha-position migration of the exocyclic C=C bond unit in ethyl tetrahydroindolizinoindolylidenepropanoate is described.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">16</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;2.675&lt;/p&gt;</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mulani, Fayaj A.</style></author><author><style face="normal" font="default" size="100%">Nandikol, Sharvani S.</style></author><author><style face="normal" font="default" size="100%">Kajjihundi, Jagadeesh S.</style></author><author><style face="normal" font="default" size="100%">Pathappa, Niranjana</style></author><author><style face="normal" font="default" size="100%">Puttappa, Sharanappa</style></author><author><style face="normal" font="default" size="100%">Thulasiram, V. Hirekodathakallu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Ultra-high performance liquid chromatography Q-Orbitrap MS/MS-based profiling and quantification of limonoids in Meliaceae plants</style></title><secondary-title><style face="normal" font="default" size="100%">Analytical and Bioanalytical Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">LC-HRMS</style></keyword><keyword><style  face="normal" font="default" size="100%">LC-MS/MS</style></keyword><keyword><style  face="normal" font="default" size="100%">Limonoids</style></keyword><keyword><style  face="normal" font="default" size="100%">Meliaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword><keyword><style  face="normal" font="default" size="100%">Quantification</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">414</style></volume><pages><style face="normal" font="default" size="100%">6093-6106</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Meliaceae plants have been extensively used in agriculture, folklore, and traditional medicine. They are the major storehouses for structurally diverse limonoids (meliacins) possessing various bioactivities like antifeedant, insecticidal, antimicrobial, etc. However accurate detection of these tetranortriterpenes from the vast pool of metabolites in plant tissue extracts or biological sample is a crucial challenge. Though the mass spectrum (MS) provides the molecular mass and the corresponding elemental composition, it cannot be relied precisely. The exact identification of a specific metabolite demands the MS/MS spectrum containing the signature product ions. In the present study, we have developed the UHPLC Q-Orbitrap-based method for identification, quantification, and characterization of limonoids in different plant tissue extracts requiring minimum plant material. Using this method, we carried out the limonoid profiling in different tissue extracts of sixteen Meliaceae plants and the identification of limonoids was performed by comparing the retention time (RT), ESI-(+)-MS spectrum, and HCD-MS/MS of the purified fifteen limonoids used as reference standards. Our results revealed that early intermediates of the limonoid biosynthetic pathway such as azadiradione, epoxyazadiradione, and gedunin occurred more commonly in Meliaceae plants. The MS/MS spectrum library of the fifteen limonoids generated in this study can be utilized for identification of these limonoids in other plant tissue extracts, botanical fertilizers, agrochemical formulations, and bio pesticides.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">20</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;
	4.478&lt;/p&gt;
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Patil, Nivedita T.</style></author><author><style face="normal" font="default" size="100%">Sarkar, Nitai</style></author><author><style face="normal" font="default" size="100%">Mysore, S. Shashidhar</style></author><author><style face="normal" font="default" size="100%">Gonnade, Rajesh G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Asymmetric synthesis of inositol derivatives</style></title><secondary-title><style face="normal" font="default" size="100%">Tetrahedron</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Asymmetric synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbohydrate</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclitol</style></keyword><keyword><style  face="normal" font="default" size="100%">Inositol</style></keyword><keyword><style  face="normal" font="default" size="100%">Natural product</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">162</style></volume><pages><style face="normal" font="default" size="100%">134113</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Both the enantiomers of racemic 4- O -tosyl-6- O -benzyl- myo -inositol-1,3,5-orthoformate ( 2 ) were isolated by preferential crystallization and used to synthesize several enantiomeric myo -inositol derivatives - natural ononitol, natural laminitol, precursors for myo -inositol phosphates and an oxabicyclo [2.2.1] heptane derivative. This work demonstrates the potential of the enantiomeric tosylates D2 and L2 to serve as versatile starting materials for the absolute asymmetric synthesis of inositol derivatives and other natural products from symmetric myo -inositol since no optically active molecular entity was required for the resolution of 2.&lt;/p&gt;
</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;
	2.1&lt;/p&gt;
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