Amide compounds of formula (I) wherein R1 is an N-containing heterocyclic group selected from imidazolyl, triazolyl, pyridyl, pyridazinyl, pyrimidinyl and pyrazinyl, each of which may be substituted with one or more lower alkyl groups, R2 is a hydrogen atom or a lower alkyl group, and R3 is a phenyl group substituted with thienyl or halophenyl; a thienyl group substituted with thienyl, phenyl or halophenyl; a pyrrolyl group substituted with phenyl; a thiazolyl group substituted with phenyl; an indolyl group substituted with lower alkyl and/or halo(lower)alkyl; a fluorenyl group; or a carbazolyl group, and salts thereof which have 5-HT antagonism activity.
化合物的式子为(I),其中R1是一种含
氮杂环基团,可选自
咪唑基,三唑基,
吡啶基,
吡嗪啉基,
嘧啶基和
吡嗪基,每个基团都可以用一个或多个较低烷基基团取代;R2是
氢原子或较低烷基基团;R3是
苯基,取代有
噻吩基或卤代
苯基;取代有
噻吩基,
苯基或卤代
苯基的
噻吩基;取代有
苯基的
吡咯基;取代有
苯基的
噻唑基;取代有较低烷基和/或卤代较低烷基的
吲哚基;
芴基;或
咔唑基,以及具有5-HT拮抗活性的盐。