01943nas a2200253   4500008004100000022001200041245016100053210006900214260000900283300000700292490000800299520103300307653004101340653003001381653001701411653001001428100001801438700002101456700002401477700002001501700001901521700001801540856013101558       2018                        eng d  a974362600aSynthesis and biological evaluation of some bicyclic [2-(2,4-dimethylphenylthio)phenyl] aniline and its amide derivatives as potential antitubercular agents0 aSynthesis and biological evaluation of some bicyclic 224dimethyl  cFEB   a220 v1303 a<p>In the present investigation, a series of bicyclic [2-(2,4-dimethylphenylthio)phenyl] aniline analogues were synthesized and characterized by IR, NMR (1H and 13C) and mass spectra. All newly synthesized 15 compounds were inspected for their in vitro antitubercular activity against Mycobacterium tuberculosis (MTB) H37Ra in both active and dormant state using an established XTT Reduction Menadione assay (XRMA). The titled compounds exhibited minimum inhibitory concentration (MIC90) ranging from 0.05 to &gt;30 (μg/mL). The potent four compounds were further evaluated in THP-1 infection model where they demonstrated significant antitubercular activity. All the ex vivo active were further evaluated for cytotoxic activity against THP-1, MCK7 and HeLa cell lines in order to check selectivity index. All compounds were further screened against four different bacteria to assess their selectivity towards MTB. These derivatives could be considered as a precursor structure for further design of antituberculosis agent.</p>10a4-dimethylphenylthio)phenyl] aniline10aantituberculosis activity10aCytotoxicity10a[2-(21 aPatil, Yogesh1 aShingare, Ramesh1 aChakraborty, Shakti1 aBorkute, Rachna1 aSarkar, Dhiman1 aMadje, Balaji  uhttps://library.ncl.res.in/content/synthesis-and-biological-evaluation-some-bicyclic-2-24-dimethylphenylthiophenyl-aniline-and02623nas a2200277   4500008004100000022001400041245015000055210006900205260000800274300001300282490000800295520166900303653002001972653001901992653002102011653001702032653002202049653002402071100001802095700002102113700002002134700002102154700001902175700002202194856012902216       2018                        eng d  a0365-623300aSynthesis and biological evaluation of some new tricyclic pyrrolo[3,2-e]tetrazolo[1,5-c]pyrimidine derivatives as potential antitubercular agents0 aSynthesis and biological evaluation of some new tricyclic pyrrol  cAUG  ae18000400 v3513 a<p>A series of new tricyclic pyrrolo[3,2-e]tetrazolo[1,5-c]pyrimidines 8a-l were synthesized and characterized by IR, NMR (H-1 and C-13), and mass spectral analysis. The newly synthesized compounds 8a-l were inspected for their in vitro antitubercular activity against Mycobacterium tuberculosis (MTB) H37Ra using an established XTT reduction menadione assay (XRMA). The title compounds exhibited minimum inhibitory concentrations (MIC90) ranging from 0.09 to &gt;30g/mL. Five compounds (8c, 8i-l) were further confirmed for their dose-dependent effect against MTB. These compounds were evaluated in the THP-1 infection model, where 8i (MIC90=0.35g/mL), 8j (MIC90=1.17g/mL), 8k (MIC90=2.38g/mL), and 8l (MIC90=1.17g/mL) demonstrated significant antitubercular activity. All the ex vivo active compounds showed insignificant cytotoxicity against the human cancer cell lines, HeLa, MCF-7, and THP-1. Inactivity of all these compounds against Gram positive and Gram negative bacteria indicates their specificity. Molecular docking studies in the active site of the sterol 14alpha-demethylase (CYP51) enzyme revealed a similar binding mode to the native ligand in the crystal structure, thereby helping to understand the ligand-protein interactions and to establish a structural basis for inhibition of MTB. The results suggest novel pharmacophores as selective and specific inhibitors against MTB that can be explored further to synthesize lead compounds against tuberculosis. In summary, the results clearly indicate the identification of some novel, selective, and specific inhibitors against MTB that can be explored further for potential antitubercular drugs.</p>10a2-e]tetrazolo[110a5-c]pyrimidine10aAntituberculosis10aCytotoxicity10aMolecular docking10atricyclic pyrrolo[31 aPatil, Yogesh1 aShingare, Ramesh1 aChoudhari, Amit1 aBorkute, Rachana1 aSarkar, Dhiman1 aMadje, Balaji, R.  uhttps://library.ncl.res.in/content/synthesis-and-biological-evaluation-some-new-tricyclic-pyrrolo32-etetrazolo15-cpyrimidine