A robust synthesis of functionalized 2 H -indazoles via solid state melt reaction (SSMR) and their anti-tubercular activity
作者:Shinde Vidyacharan、Chandan Adhikari、Vagolu Siva Krishna、Rudraraju Srilakshmi Reshma、Dharmarajan Sriram、Duddu S. Sharada
DOI:10.1016/j.bmcl.2017.02.021
日期:2017.4
screened for in vitro antimycobacterialactivity against Mycobacterium tuberculosis H37Rv, compound 3u (MIC: 4.20μM) was found to be most active and are superior over existing standard drugs ciprofloxacin and ethambutol. Compounds 3c and 3x were found to equally potent as ethambutol. Among most potent compounds in the series, four compounds (3n, 3o, 3p and 3u) showed lower cytotoxicity which could be promising
A Biphilic Phosphetane Catalyzes N–N Bond-Forming Cadogan Heterocyclization via P<sup>III</sup>/P<sup>V</sup>═O Redox Cycling
作者:Trevor V. Nykaza、Tyler S. Harrison、Avipsa Ghosh、Rachel A. Putnik、Alexander T. Radosevich
DOI:10.1021/jacs.7b03260
日期:2017.5.24
chemoselective catalytic synthesis of 2H-indazoles, 2H-benzotriazoles, and related fused heterocyclic systems with good functional group compatibility. On the basis of both stoichiometric and catalytic mechanistic experiments, the reaction is proposed to proceed via catalytic PIII/PV═O cycling, where DFT modeling suggests a turnover-limiting (3+1) cheletropic addition between the phosphetane catalyst and nitroarene