The thiosemicarbazone of acetophenone (1a) had been shown previously to afford protection against experimentally-induced seizures. This report describes the systematic chemical modification of 1a and the activities of these analogues in the maximal electroshock seizure (MES) test, subcutaneous maximal pentylenetetrazole seizure (scPTZ) test and neurotoxicity screen in mice when administered by the intraperitoneal route. Most of the compounds were active and representative compounds examined for oral activity in rats revealed that in most cases protection against seizures induced in the MES screen but not the scPTZ test was achieved at a dose of 50 mg/kg. Some correlations between chemical structures and anticonvulsant properties were found.
Novel molecular hybrids of cinnamic acids and guanylhydrazones as potential antitubercular agents
作者:Ranjeet Bairwa、Manoj Kakwani、Nilesh R. Tawari、Jaya Lalchandani、M.K. Ray、M.G.R. Rajan、Mariam S. Degani
DOI:10.1016/j.bmcl.2010.01.031
日期:2010.3
In an attempt to identify potential new agents active against tuberculosis, 20 novel phenylacrylamide derivatives incorporating cinnamic acids and guanylhydrazones were synthesized using microwave assisted synthesis. Activity of the synthesized compounds was evaluated using resazurin microtitre plate assay (REMA) against Mycobacterium tuberculosis H37Rv. Based on empirical structure-activity relationship data it was observed that both steric and electronic parameters play major role in the activity of this series of compounds. Compound 7s (2E)-N-((-2-(3,4-dimethoxybenzylidene) hydrazinyl) (imino) methyl)-3-(4-methoxyphenyl) acrylamide showed MIC of 6.49 mu M along with good safety profile of >50-fold in VERO cell line. Thus, this compound could act as a potential lead for further antitubercular studies. (C) 2010 Elsevier Ltd. All rights reserved.
Molecular hybrids integrated with imidazole and hydrazone structural motifs: Design, synthesis, biological evaluation, and molecular docking studies
作者:Michael Tapera、Hüseyin Kekeçmuhammed、Emin Sarıpınar、Murat Doğan、Burak Tüzün、Ümit M. Koçyiğit、Feyza Nur Çetin