<?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%">Gadekar, Pradip K.</style></author><author><style face="normal" font="default" size="100%">Roychowdhury, Abhijit</style></author><author><style face="normal" font="default" size="100%">Kharkar, Prashant S.</style></author><author><style face="normal" font="default" size="100%">Khedkar, Vijay M.</style></author><author><style face="normal" font="default" size="100%">Arkile, Manisha A.</style></author><author><style face="normal" font="default" size="100%">Manek, Hardik</style></author><author><style face="normal" font="default" size="100%">Sarkar, Dhiman</style></author><author><style face="normal" font="default" size="100%">Sharma, Rajiv</style></author><author><style face="normal" font="default" size="100%">Vijayakumar, V.</style></author><author><style face="normal" font="default" size="100%">Sarveswari, S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Design, synthesis and biological evaluation of novel azaspiro analogs of linezolid as antibacterial and antitubercular agents</style></title><secondary-title><style face="normal" font="default" size="100%">European Journal of Medicinal Chemistry</style></secondary-title></titles><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><volume><style face="normal" font="default" size="100%">122</style></volume><pages><style face="normal" font="default" size="100%">475-487</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 design, synthesis and antimicrobial evaluation of a novel series of azaspiro analogues of linezolid (1) have been described. Linezolid comprises of a morpholine ring which is known for its metabolism related liabilities. Therefore, the key modification made in the linezolid structure was the replacement of morpholine moiety with its bioisostere, 2-oxa-6-azaspiro[3.3]heptane. Furthermore, the replacement of N-acetyl terminal of 1 with various aromatic or aliphatic functionalities was carried out. The title compounds were evaluated against a panel of Gram-positive and Gram-negative bacteria and Mycobacterium tuberculosis. Subsequent structure-activity relationship (SAR) studies identified several compounds with mixed antibacterial and antitubercular profiles. Compound 22 (IC50 0.72, 0.51, 0.88, 0.49 mu g/mL for Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis, respectively) exhibited similar antibacterial profile as I. The N-acetyl derivative 18 was similar to 1 in antitubercular profile. Thus, the present study successfully demonstrated the use of azaspiro substructure in the medicinal chemistry of antibacterial and antitubercular agents. (C) 2016 Elsevier Masson SAS. All rights reserved.&lt;/p&gt;</style></abstract><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%">3.902</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%">Upare, Abhay Atmaram</style></author><author><style face="normal" font="default" size="100%">Gadekar, Pradip K.</style></author><author><style face="normal" font="default" size="100%">Sivaramakrishnan, H.</style></author><author><style face="normal" font="default" size="100%">Naik, Nishigandha</style></author><author><style face="normal" font="default" size="100%">Khedkar, Vijay M.</style></author><author><style face="normal" font="default" size="100%">Sarkar, Dhiman</style></author><author><style face="normal" font="default" size="100%">Choudhari, Amit</style></author><author><style face="normal" font="default" size="100%">Roopan, S. Mohana</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Design, synthesis and biological evaluation of (E)-5-styryl-1,2,4-oxadiazoles as anti-tubercular agents</style></title><secondary-title><style face="normal" font="default" size="100%">Bioorganic Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1</style></keyword><keyword><style  face="normal" font="default" size="100%">2</style></keyword><keyword><style  face="normal" font="default" size="100%">4-Oxadiazole</style></keyword><keyword><style  face="normal" font="default" size="100%">Anti-tubercular</style></keyword><keyword><style  face="normal" font="default" size="100%">Bioisosteres</style></keyword><keyword><style  face="normal" font="default" size="100%">Cinnamic acid</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular docking</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAY</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">86</style></volume><pages><style face="normal" font="default" size="100%">507-512</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Cinnamic acid and its derivatives are known for anti-tubercular activity. The present study reports the synthesis of cinnamic acid derivatives via bioisosteric replacement of terminal carboxylic acid with ``oxadiazole''. A series of cinnamic acid derivatives (styryl oxadiazoles) were designed and synthesized in good yields by reaction of substituted cinnamic acids (2, 15a-15s) with amidoximes. The synthesized styryl oxadiazoles were evaluated in vitro for anti-tubercular activity against Mycobacterium tuberculosis (Mtb) H37Ra strain. The structure-activity relationship (SAR) study has identified several compounds with mixed anti-tubercular profiles. The compound 32 displayed potent anti-tubercular activity (IC50= 0.045 mu g/mL). Molecular docking studies on mycobacterial enoyl-ACP reductase enzyme corroborated well with the experimental findings providing a platform for structure based hit-to-lead development.&lt;/p&gt;
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</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;3.926&lt;/p&gt;
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