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Dibenzoxepin derivatives: thromboxane A2 synthase inhibition and thromboxane A2 receptor antagonism combined in one molecule.

作者信息

Ohshima E, Sato H, Obase H, Miki I, Ishii A, Kawakage M, Shirakura S, Karasawa A, Kubo K

机构信息

Pharmaceutical Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., Shizuoka, Japan.

出版信息

J Med Chem. 1993 May 28;36(11):1613-8. doi: 10.1021/jm00063a011.

DOI:10.1021/jm00063a011
PMID:8496929
Abstract

A new series of 6,11-dihydrodibenz[b,e]oxepin derivatives exerting both thromboxane synthase inhibitory (TXS-I) and thromboxane receptor antagonist (TXRA) activities is described. (-)-11-[(3-Pyridylmethyl)thio]-6,11-dihydrodibenz[b,e]oxepin -2- carboxylic acid [(-)-3] and (E)-11-[2-(3-pyridyl)ethylidene]-6,11-dihydrodibenz[b,e]oxepin+ ++-2- carboxylic acid methanesulfonate (11E) exhibited potent inhibitory effects on bovine platelet thromboxane synthase with IC50 values of 4.0 and 14 nM, respectively, and these derivatives also antagonized guinea pig platelet TXA2/PGH2 receptors with Ki values of 85 and 180 nM, respectively. Compound 11E exhibited the dual inhibitory activity in ex vivo experiments and demonstrated a significant protective effect in a rat acute renal failure model.

摘要

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