Synthesis and Platelet-Activating Factor (PAF)-Antagonistic Activities of 1,4-Disubstituted Piperazine Derivatives.
- 1 January 1994
- journal article
- Published by Pharmaceutical Society of Japan in CHEMICAL & PHARMACEUTICAL BULLETIN
- Vol. 42 (3) , 541-550
- https://doi.org/10.1248/cpb.42.541
Abstract
During the screening of novel platelet-activating factor (PAF) antagonists, we found that 1-(6-methoxy-3,4-dihydro-2-naphthoyl)-4- (3,4,5-trimethoxybenzyl)piperazine and its 4-(3,4,5- trimethoxybenzoyl)piperazine derivatives (1b, 2b) exerted in vitro and in vivo PAF-antagonistic activities. Modifications of the 1-acyl group, the substituent at the 4-position and the piperazine ring of 1a and 2b were examined and from this series 1-(2,3-dimethoxy-6,7-dihydro-5H-benzocyclohepten-8-ylcarbonyl++ +)-4- (3,4,5-trimethoxybenzoyl)piperazine (2g) was found to be one of the most potent PAF antagonists.Keywords
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