申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US05344927A1
公开(公告)日:1994-09-06
A tetrahydrobenzimidazole derivative represented by formula (I): ##STR1## wherein Het represents a heterocyclic group which may be substituted with 1 to 3 substituents selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl-lower alkyl group, an aralkyl group, a lower alkoxy group, a nitro group, a hydroxyl group, a lower alkoxycarbonyl group, and a halogen atom; and X represents a single bond or --NH-- which is bonded to the carbon atom or nitrogen atom of the heterocyclic ring, or a pharmaceutically acceptable salt thereof. The compound of formula (I) and a salt thereof exhibits antagonism against 5-HT.sub.3 receptor.
公式(I)表示的一种四氢苯并咪唑衍生物:其中Het代表一个杂环基团,该基团可用1至3个取代基取代,所述取代基选自以下基团:较低的烷基基团、较低的烯基基团、较低的炔基基团、环烷基-较低的烷基基团、芳基烷基基团、较低的烷氧基团、硝基基团、羟基基团、较低的烷氧羰基基团和卤原子;X代表与杂环环的碳原子或氮原子连接的单键或--NH--,或其药用可接受的盐。公式(I)的化合物及其盐具有对5-HT3受体的拮抗作用。