Extending the Structure–Activity Relationship of Anthranilic Acid Derivatives As Farnesoid X Receptor Modulators: Development of a Highly Potent Partial Farnesoid X Receptor Agonist
The ligand activated transcription factor nuclear farnesoid X receptor (FXR) is involved as a regulator in many metabolic pathways including bile acid and glucose homeostasis. Therefore, pharmacological activation of FXR seems a valuable therapeutic approach for several conditions including metabolic diseases linked to insulin resistance, liver disorders such as primary biliary cirrhosis or nonalcoholic
Sustainable methine sources for the synthesis of heterocycles under metal- and peroxide-free conditions
作者:Gopal Chandru Senadi、Vishal Suresh Kudale、Jeh-Jeng Wang
DOI:10.1039/c8gc03839b
日期:——
identified as sustainable methine sources for synthesizing quinazolinone and benzimidazole derivatives using a combination of TsOH·H2O/O2 and appropriate bis-nucleophiles for the first time. Deuterium labeling studies clearly proved that the C2 hydrogen of the synthesized heterocycles came from the methine source. These unique reaction conditions were successfully applied to the synthesis of echinozolinone
首次将TsOH·H 2 O / O 2和适当的双亲核试剂组合使用,将醇和醚确定为可持续的次甲基来源,用于合成喹唑啉酮和苯并咪唑衍生物。氘标记研究清楚地证明了合成杂环的C 2氢来自次甲基。这些独特的反应条件已成功地用于合成棘金龙酮(2e'),2f'(rutaecarpine和(±)evodiamine的常见前体)和二咪唑(6d)。该方法的显着特征包括低毒性,使用商业原料作为底物,成本低,对官能团的耐受性强以及对多种双亲核起始原料的适用性。
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
Metal-free C–H methylation and acetylation of heteroarenes with PEG-400
作者:Vishal Suresh Kudale、Jeh-Jeng Wang
DOI:10.1039/d0gc01183e
日期:——
efficient route for methylation and acetylation of aza-heteroarenes using PEG-400 under O2 and TsOH·H2O for the first time by tuning the reaction conditions using a different set of starting materials. The key features of the current protocol are oxidative C–O and C–C bond scission under metal-free conditions with good functional group tolerance, and a broad substrate scope. The potential applicability