02287nas a2200217 4500008004100000022001400041245011800055210006900173260011000242300001400352490000600366520139800372100002401770700003001794700001901824700001901843700002601862700003101888700002601919856012401945 2015 eng d a2040-250300a1,2,3-Triazole derivatives as antitubercular agents: synthesis, biological evaluation and molecular docking study0 a123Triazole derivatives as antitubercular agents synthesis biolo aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAY a1104-11160 v63 a

Searching for new active molecules against Mycobacterium tuberculosis (MTB) H37Ra, a small focused library of 1,2,3-triazoles has been efficiently prepared via a click chemistry approach. The newly synthesized compounds were tested against drug-sensitive MTB. Several derivatives were found to be promising inhibitors of MTB characterized by lower MIC values (5.8-29.9 mu g mL(-1)). Among all the synthesized 31 compounds, 15e was the most active compound against MTB. Based on the results from the antitubercular activity, SAR for the synthesized series has been developed. The active compounds from the anti-tubercular study were further tested for anti-proliferative activity against THP-1, A549 and PANC-1 cell lines using MTT assay and showed no significant cytotoxic activity against these three cell lines except THP-1 at the maximum concentration evaluated. Further, the synthesized compounds were found to have potential antioxidant activities with an IC50 range of 10.1-37.3 mu g mL(-1). The molecular docking study of the synthesized compounds was performed against the DprE1 enzyme of MTB to understand the binding interactions. Moreover, the synthesized compounds were also analysed for ADME properties and all the experimental results promote us to consider this series as a starting point for the development of novel and more potent anti-tubercular agents in the future.

1 aShaikh, Mubarak, H.1 aSubhedar, Dnyaneshwar, D.1 aNawale, Laxman1 aSarkar, Dhiman1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/123-triazole-derivatives-antitubercular-agents-synthesis-biological-evaluation-and-001714nas a2200205 4500008004100000022001400041245010400055210006900159260011000228300001400338490000700352520086400359100003001223700002401253700002601277700003101303700002301334700002601357856012501383 2016 eng d a1144-054600aFacile synthesis of new N-sulfonamidyl-4-thiazolidinone derivatives and their biological evaluation0 aFacile synthesis of new Nsulfonamidyl4thiazolidinone derivatives aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB a3047-30580 v403 a

The one-pot three-component syntheses of new N-sulfonamide-thiazolidin-4-one derivatives were carried out in excellent yield using [HDBU][HSO4] as an ionic liquid under solvent-free conditions. The newly synthesized compounds were screened against fungal strains and a number of compounds were seen to display excellent antifungal activity. In addition, the synthesized compounds were screened for their scavenging activity of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and showed very good antioxidant activity. Finally, theoretical predictions derived from molecular docking studies against the potential target sterol 14 alpha-demethylase (CYP51) helped establish a link between the observed biological activity and the binding affinity, thereby providing insights into the specific bonding and non-bonding interactions governing the activity.

1 aSubhedar, Dnyaneshwar, D.1 aShaikh, Mubarak, H.1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aKhedkar, Vijay, M.1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/facile-synthesis-new-n-sulfonamidyl-4-thiazolidinone-derivatives-and-their-biological02255nas a2200289 4500008004100000022001400041245010400055210006900159260010600228300001400334490000700348520119600355653001501551653001901566653001701585653001801602653002601620100003001646700002401676700001901700700001701719700001901736700002601755700003101781700002601812856012701838 2016 eng d a0960-894X00aNovel tetrazoloquinoline-rhodanine conjugates: highly efficient synthesis and biological evaluation0 aNovel tetrazoloquinolinerhodanine conjugates highly efficient sy aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcMAY a2278-22830 v263 a

In search of new active molecules against Mycobacterium tuberculosis (MTB) H37Ra and Mycobacterium bovis BCG, a small focused library of rhodanine incorporated tetrazoloquinoline has been efficiently synthesized by using [HDBU][HSO4] acidic ionic liquid. The compound 3c found to be promising inhibitor of MTB H37Ra and M. bovis BCG characterized by lower MIC values 4.5 and 2.0 mu g/mL, respectively. The active compounds were further tested for cytotoxicity against HeLa, THP-1, A549 and PANC-1 cell lines using MTT assay and showed no significant cytotoxic activity at the maximum concentration evaluated. Again, the synthesized compounds were found to have potential antifungal activity. Furthermore, to rationalize the observed biological activity data, the molecular docking study also been carried out against a potential target Zmp1 enzyme of MTB H37Ra, which revealed a significant correlation between the binding score and biological activity for these compounds. The results of in vitro and in silico study suggest that these compounds possess ideal structural requirement for the further development of novel therapeutic agents. (C) 2016 Elsevier Ltd. All rights reserved.

10aantifungal10aAntitubercular10aCytotoxicity10aDocking study10aRhodanine derivatives1 aSubhedar, Dnyaneshwar, D.1 aShaikh, Mubarak, H.1 aNawale, Laxman1 aYeware, Amar1 aSarkar, Dhiman1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/novel-tetrazoloquinoline-rhodanine-conjugates-highly-efficient-synthesis-and-biological02733nas a2200361 4500008004100000022001400041245015600055210006900211260008300280300001200363490000700375520148300382653000601865653000601871653001501877653002001892653001801912653001601930653001901946653002001965653001801985100002402003700003002027700002602057700002602083700003102109700002302140700001902163700001902182700002402201700002302225856012302248 2016 eng d a1054-252300aSynthesis, biological evaluation and molecular docking of novel coumarin incorporated triazoles as antitubercular, antioxidant and antimicrobial agents0 aSynthesis biological evaluation and molecular docking of novel c a233 SPRING STREET, 6TH FLOOR, NEW YORK, NY 10013 USAbSPRINGER BIRKHAUSERcAPR a790-8040 v253 a

A series of new coumarin-based 1,2,3-triazole derivatives were designed, synthesized and evaluated for their antitubercular activity in vitro against Mycobacterium tuberculosis H37Ra, antioxidant activity by DPPH radical scavenging assay, antimicrobial activity in vitro against three gram-positive bacteria (Staphylococcus aureus, Micrococcus luteus and Bacillus cereus) and three gram-negative bacteria (Escherichia coli, Pseudomonas fluorescens and Flavobacterium devorans as well as three fungi (Aspergillus niger, Penicillium chrysogenum and Curvularia lunata). The bioactive assay showed that some synthesized coumarin triazoles displayed comparable or even better antitubercular, antioxidant, antibacterial and antifungal efficacy in comparison with reference drugs. Furthermore, docking study has been performed against DprE1 enzyme of M. tuberculosis that showed good binding interactions. Moreover, the synthesized compounds were also analyzed for ADME properties and showed potential to build up as good oral drug candidates. New coumarin-based 1,2,3-triazole derivatives were designed, synthesized and evaluated for their antitubercular, antioxidant, antibacterial and antifungal activity. Some of the coumarin-based triazole derivatives displayed comparable or even better efficacy in comparison with reference drugs. Molecular docking study has been performed against DprE1 enzyme of Mycobacterium tuberculosis showed good binding interactions. [GRAPHICS] .

10a110a210a3-Triazole10aADME prediction10aAntimicrobial10aAntioxidant10aAntitubercular10aClick chemistry10aDocking study1 aShaikh, Mubarak, H.1 aSubhedar, Dnyaneshwar, D.1 aShingate, Bapurao, B.1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aKhedkar, Vijay, M.1 aNawale, Laxman1 aSarkar, Dhiman1 aNavale, Govinda, R.1 aShinde, Sandip, S. uhttps://library.ncl.res.in/content/synthesis-biological-evaluation-and-molecular-docking-novel-coumarin-incorporated-102359nas a2200301 4500008004100000022001400041245019600055210006900251260006500320300000800385490000700393520123800400653000601638653000601644653001801650653002401668653002101692653002201713653002101735653001501756100002401771700002201795700003001817700002601847700003101873700003001904856012301934 2016 eng d a1420-304900aUltrasound- and molecular sieves-assisted synthesis, molecular docking and antifungal evaluation of 5-(4-(benzyloxy)-substituted phenyl)-3-((phenylamino)methyl)-1,3,4-oxadiazole-2(3H)-thiones0 aUltrasound and molecular sievesassisted synthesis molecular dock aST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLANDbMDPI AGcMAY a4840 v213 a

A novel series of 5-(4-(benzyloxy) substituted phenyl)-3-((phenyl amino) methyl)-1,3,4-oxadiazole-2(3H)-thione Mannich bases 6a-o were synthesized in good yield from the key compound 5-(4-(benzyloxy) phenyl)-1,3,4-oxadiazole-2(3H)-thione by aminomethylation with paraformaldehyde and substituted amines using molecular sieves and sonication as green chemistry tools. The antifungal activity of the new products was evaluated against seven human pathogenic fungal strains, namely, Candida albicans ATCC 24433, Candida albicans ATCC 10231, Candida glabrata NCYC 388, Cryptococcus neoformans ATCC 34664, Cryptococcus neoformans PRL 518, Aspergillus fumigatus NCIM 902 and Aspergillus niger ATCC 10578. The synthesized compounds 6d, 6f, 6g, 6h and 6j exhibited promising antifungal activity against the tested fungal pathogens. In molecular docking studies, derivatives 6c, 6f and 6i showed good binding at the active site of C. albicans cytochrome P450 enzyme lanosterol 14 alpha-demethylase. The in vitro antifungal activity results and docking studies indicated that the synthesized compounds have potential antifungal activity and can be further optimized as privileged scaffolds to design and develop potent antifungal drugs.

10a110a310a4-oxadiazoles10aAntifungal activity10aMannich reaction10aMolecular docking10aMolecular sieves10aUltrasound1 aNimbalkar, Urja, D.1 aTupe, Santosh, G.1 aVazquez, Julio, A. Seijas1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aNikalje, Anna, Pratima G. uhttps://library.ncl.res.in/content/ultrasound-and-molecular-sieves-assisted-synthesis-molecular-docking-and-antifungal01956nas a2200217 4500008004100000245008100041210006900122260000800191300001400199490000800213520120400221100003001425700002401455700002601479700001901505700001901524700002301543700002601566700003101592856011501623 2017 eng d00aQuinolidene-rhodanine conjugates: facile synthesis and biological evaluation0 aQuinolidenerhodanine conjugates facile synthesis and biological  cJAN a385–3990 v1253 a

A series of rhodanine incorporated quinoline derivatives were efficiently synthesized using reusable DBU acetate as ionic liquid and evaluated for their in vitro antitubercular activity against Mycobacterium tuberculosis H37Ra (MTB) (ATCC 25177) and Mycobacterium bovis BCG (ATCC 35743) both in active and dormant state. Compounds 3e, 3f, 3g, 3h and 3i exhibited very good antitubercular activity. The active compounds were studied for cytotoxicity against HUVEC, THP-1, macrophages, A549, PANC-1 and HeLa cell lines using modified MTT assay and were found to be noncytotoxic. Inactivity of all these compounds against Gram positive and Gram negative bacteria indicates their specificity towards the MTB. Further, the synthesized compounds have been screened for their in vitro antifungal activity. In addition, the molecular docking studies revealed the binding modes of these compounds in active site of Zmp1 enzyme, which in turn helped to establish a structural basis of inhibition of mycobacteria. The results of present study clearly indicate the identification of some novel, selective and specific inhibitors against MTB that can be explored further for potential antitubercular drug.

1 aSubhedar, Dnyaneshwar, D.1 aShaikh, Mubarak, H.1 aShingate, Bapurao, B.1 aNawale, Laxman1 aSarkar, Dhiman1 aKhedkar, Vijay, M.1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N. uhttps://library.ncl.res.in/content/quinolidene-rhodanine-conjugates-facile-synthesis-and-biological-evaluation01001nas a2200205 4500008004100000245014600041210006900187260000800256490000700264520019900271100002400470700003000494700002600524700003100550700001900581700002400600700001900624700002600643856012600669 2017 eng d00aSynthesis of novel triazole-incorporated isatin derivatives as antifungal, antitubercular, and antioxidant agents and molecular docking study0 aSynthesis of novel triazoleincorporated isatin derivatives as an cJAN0 v543 a

A library of 1,2,3-triazoles efficiently prepared via click chemistry and evaluated for their antifungal, antitubercular, antioxidant, cytotoxicity, molecular docking and ADME prediction.

1 aShaikh, Mubarak, H.1 aSubhedar, Dnyaneshwar, D.1 aKhan, Firoz, A. Kalam1 aSangshetti, Jaiprakash, N.1 aNawale, Laxman1 aArkile, Manisha, A.1 aSarkar, Dhiman1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/synthesis-novel-triazole-incorporated-isatin-derivatives-antifungal-antitubercular-and02002nas a2200289 4500008004100000022001200041245013300053210006900186260000800255300000900263490000700272520104300279653000601322653000601328653001601334653002601350653002801376653001701404653002201421100002301443700002401466700001901490700003101509700002301540700002601563856012301589 2018 eng d a922616800aSynthesis and biological evaluation of novel triazole-biscoumarin conjugates as potential antitubercular and anti-oxidant agents0 aSynthesis and biological evaluation of novel triazolebiscoumarin cMAY a1-280 v443 a

The synthesis of a new series of triazole-biscoumarin conjugates by using a molecular hybridization approach is described. The newly synthesized compounds 6a–k were evaluated for their in vitro antitubercular activity against active and dormant Mtb H37Ra and anti-oxidant activity against DPPH radical scavenging. Molecular docking simulations for the antitubercular activity showed that the conjugates 6a–k bind in the pocket of the DprE1 enzyme. Most of the conjugates displayed good antitubercular activity against both the active and dormant Mtb H37Ra strain. The compound 6h displayed very good antitubercular activity against dormant Mtb H37Ra with an IC50 value of 1.44 μg/mL. Most of the synthesized conjugates exhibit excellent anti-oxidant activity with an IC50 of less than the standard BHT. Compound 6b is the most active among all the conjugates with an IC50 value of 08.17 ± 0.11 μg/mL. The molecular docking study shows good agreement between the observed antitubercular activity and the binding affinity.

10a110a210a3-triazoles10aAnti-oxidant activity10aAntitubercular activity10aBiscoumarins10aMolecular docking1 aDanne, Ashruba, B.1 aChoudhari, Amit, S.1 aSarkar, Dhiman1 aSangshetti, Jaiprakash, N.1 aKhedkar, Vijay, M.1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/synthesis-and-biological-evaluation-novel-triazole-biscoumarin-conjugates-potential01777nas a2200217 4500008004100000022001300041245013800054210006900192260000800261300001400269490000600283520098100289100002501270700002201295700002101317700002501338700002201363700003101385700002401416856011901440 2018 eng d a2365654900aSynthesis of novel alpha-aminophosphonate derivatives, biological evaluation as potent antiproliferative agents and molecular docking0 aSynthesis of novel alphaaminophosphonate derivatives biological  cMAY a5552-55580 v33 a

A series of novel fluorine containing α‐aminophosphonate derivatives (4 a–4 q) were synthesized in excellent yield and high purity. All these novel Fluorinated α‐aminophosphonate compounds were screened for antiproliferative and apoptosis activity on human non small cell lung carcinoma cells (A549) and human skin melanoma cells (SK‐MEL‐2). Compounds 4 a, 4 b, 4 c, 4 f, 4 i, 4 j and 4 m were found to be more active antiproliferative agent against A549 and SK‐MEL‐2 cells with IC50 value 0.22 to 1.25 μM. Molecular docking study related to binding affinity and binding mode analysis showed that synthesized compounds had potential to inhibit human Topoisomerase IIa enzyme system. Flow cytometric study showed some of these derivatives also induced cell apoptosis and arrest cell cycle at G1 and at G2/M phase. Overall, this study provides future perspective of lead candidate for the future anticancer drug discovery initiatives.

1 aDeshmukh, Satish, U.1 aKharat, Kiran, R.1 aYadav, Ashok, R.1 aShisodia, Suresh, U.1 aDamale, Manoj, G.1 aSangshetti, Jaiprakash, N.1 aPawar, Rajendra, P. uhttps://library.ncl.res.in/content/synthesis-novel-alpha-aminophosphonate-derivatives-biological-evaluation-potent02684nas a2200301 4500008004100000022001400041245015500055210006900210260000800279300002100287490000700308520162000315653001601935653003001951653001601981653002301997653002002020653002202040653002102062100002402083700002202107700002002129700002202149700003102171700001902202700003002221856013102251 2018 eng d a1420-304900aUltrasound assisted synthesis of 4-(Benzyloxy)-N-(3-chloro-2-(substitutedphenyl)-4-oxoazetidin-1-yl) benzamide as challenging anti-tubercular scaffold0 aUltrasound assisted synthesis of 4BenzyloxyN3chloro2substitutedp cAUG aArticle No: 19450 v233 a

A series of ten novel derivatives of 4-(benzyloxy)-N-(3-chloro-2-(substituted phenyl)-4-oxoazetidin-1-yl) benzamide 6a-j were synthesized in good yield from the key compound 4-(benzyloxy)-N-(substituted benzylidene) benzo hydrazide, called Schiff `s bases 5a-j, by Staudinger reaction ([2 + 2] ketene-imine cycloaddition reaction) with chloro acetyl chloride in the presence of catalyst tri ethylamine and solvent dimethyl formamide (DMF), by using ultra-sonication as one of the green chemistry tools. All the synthesised compounds were evaluated for in vitro anti-tubercular activity against Mycobacterium tuberculosis (MTB) and most of them showed promising activity with an IC50 value of less than 1 mu g/mL. To establish the safety, all the synthesized compounds were further tested for cytotoxicity against the human cancer cell line HeLa and all 6a-j compounds were found to be non-cytotoxic in nature. The molecular docking study was carried out with essential enzyme InhA (FabI/ENR) of Mycobacterium responsible for cell wall synthesis which suggests that 6a and 6e are the most active derivatives of the series. The theoretical evaluation of cell permeability based on Lipinski's rule of five has helped to rationalize the biological results and hence the synthesized azetidinone derivatives 6a-j were also analyzed for physicochemical evaluation that is, absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties and the results showed that all the derivatives could comply with essential features required for a potential lead in the anti-tubercular drug discovery process.

10aADMET study10aanti-tubercular screening10aazetidinone10acytotoxicity study10agreen chemistry10aMolecular docking10aultra-sonication1 aNimbalkar, Urja, D.1 aSeijas, Julio, A.1 aBorkute, Rachna1 aDamale, Manoj, G.1 aSangshetti, Jaiprakash, N.1 aSarkar, Dhiman1 aNikalje, Anna, Pratima G. uhttps://library.ncl.res.in/content/ultrasound-assisted-synthesis-4-benzyloxy-n-3-chloro-2-substitutedphenyl-4-oxoazetidin-1-yl01487nas a2200193 4500008004100000022001400041245009500055210006900150260000800219300001600227490000600243520081100249100002301060700000501083700003101088700002301119700002601142856012501168 2021 eng d a2470-134300aNew 1,2,3-triazole-appended bis-pyrazoles: synthesis, bioevaluation, and molecular docking0 aNew 123triazoleappended bispyrazoles synthesis bioevaluation and cSEP a24879-248900 v63 aThe present work describes design of a small library of new 1,2,3-triazole-appended bis-pyrazoles by using a molecular hybridization approach, and the synthesized hybrids were evaluated for their antifungal activity against different fungal strains, namely, Candida albicans, Cryptococcus neoformans, Candida glabrata, Candida tropicalis, Aspergillus niger, and Aspergillus fumigatus. All the compounds exhibited broad-spectrum activity against the tested fungal strains with excellent minimum inhibitory concentration values. The molecular docking study against sterol 14 alpha-demethylase (CYP51) could provide valuable insights into the binding modes and affinity of these compounds. Furthermore, these compounds were also evaluated for their antioxidant activity, which also resulted in promising data.1 aDanne, Ashruba, B.1 a1 aSangshetti, Jaiprakash, N.1 aKhedkar, Vijay, M.1 aShingate, Bapurao, B. uhttps://library.ncl.res.in/content/new-123-triazole-appended-bis-pyrazoles-synthesis-bioevaluation-and-molecular-docking