Silica gel-supported sulfuric acid catalyzed synthesis of 1,5-benzodiazepine derivatives
作者:D. Shobha、M. Adharvana Chari、K. Mukkanti、K. H. Ahn
DOI:10.1002/jhet.174
日期:2009.9
Silica gel-supported sulfuricacid has been found to be an efficient catalyst for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones in acetonitrile solvent. This method is simple, effective, and environmentally friendly and gives better yields. Compared to the classical reaction conditions, this new method consistently has the advantage of excellent yields (80–97%) and short
Anti-neuroinflammatory activity of 1,5-benzodiazepine derivatives
作者:Sang Keun Ha、Donthabhaktuni Shobha、Eunjung Moon、Murugulla A. Chari、Kagga Mukkanti、Sung-Hoon Kim、Kwang-Hyun Ahn、Sun Yeou Kim
DOI:10.1016/j.bmcl.2010.04.133
日期:2010.7
A series of 2,3-dihydro-1,5-benzodiazepines were synthesized and evaluated for anti-inflammatory effects in microglia cells. Among the 1,5-benzodiazepines tested, compound 3e strongly inhibited LPS-induced nitric oxide ( NO) production, with an IC50 value of 7.0 mu M in the microglia cells. Also, compound 3e significantly inhibited the enzymatic activity of inducible NO synthase ( iNOS) without changes in iNOS protein expression or NO scavenging activity. This result suggests that compound 3e showed anti-neuroinflammatory effects by suppressing iNOS enzyme activity. (C) 2010 Elsevier Ltd. All rights reserved.