[EN] CONDENSED HETEROCYCLIC COMPOUND, PREPARATION METHOD THEREFOR, AND MEDICAL USE THEREOF [FR] COMPOSÉ HÉTÉROCYCLIQUE CONDENSÉ, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION MÉDICALE [ZH] 稠和杂环类化合物及其制备方法和医药用途
Guanidinothiazole derivatives containing alkylene bridges, and their use
申请人:Bayer Aktiengesellschaft
公开号:US04581453A1
公开(公告)日:1986-04-08
The invention relates to guanidinothiazol derivatives of Formula (I) as defined herein, said compounds being useful for influencing lipid metabolism, as antithombotic agents and as antimycotic agents. Also included in the invention are compositions containing said guanidinothiazol derivatives of Formula (I) and the use of said compounds and compositions for treatment of the above-mentioned conditions. In addition, the invention includes methods for the manufacture of the guanidinothiazole derivatives of Formula (I).
Antiulcer agents. 4-Substituted 2-guanidinothiazoles: reversible, competitive, and selective inhibitors of gastric H+,K+-ATPase
作者:John L. LaMattina、Peter A. McCarthy、Lawrence A. Reiter、William F. Holt、Li An Yeh
DOI:10.1021/jm00164a012
日期:1990.2
A series of 4-substituted 2-guanidinothiazoles has been found to inhibit the gastric proton-pump enzyme H+,K(+)-ATPase. In general, these compounds were reversible inhibitors of canine gastric H+,K(+)-ATPase, competitive at the K+ site, and selective relative to canine renal Na+,K(+)-ATPase. Structure-activity relationship (SAR) studies on this series revealed no general replacement for the guanidinothiazole. On the other hand, use of pyrrolyl, phenyl, and indolyl groups as the C-4 substituent yielded active compounds. Extensive studies of substitution patterns on these 4-aryl groups led to more active compounds, but no consistent SAR became apparent. Monosubstitution of the guanidine and substitution of the thiazole at C-5 both often led to increased activity, but combining these changes generated compounds less active than the parents. Despite 100-fold improvement in in vitro inhibitory potency, only a 3-fold increase in gastric antisecretory activity in rats was observed for these agents.