申请人:Synthelabo
公开号:US04680296A1
公开(公告)日:1987-07-14
Piperidine derivatives which are compounds of formula (I) ##STR1## wherein Ar.sub.1 and Ar.sub.2 independently represent a phenyl group optionally substituted by a halogen atom, a thienyl group or a pyridinyl group, A represents an alkylene group of 2 to 6 carbon atoms, X represents a CO group or a bond, R.sub.1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, either R.sub.2 represents a hydrogen atom and R.sub.3 represents a hydrogen atom or a hydroxy group, or R.sub.2 and R.sub.3 together represent a bond, and R.sub.4 represents a hydrogen or halogen atom, or pharmaceutically acceptable acid addition salts thereof are useful as antiallergics and antipruritics.
Piperidine衍生物是化学式(I)的化合物,其中Ar.sub.1和Ar.sub.2分别表示一个苯基,可以被卤素原子、噻吩基团或吡啶基团取代,A表示2到6个碳原子的烷基团,X表示一个CO基团或一个键,R.sub.1表示一个氢原子或1到4个碳原子的烷基团,要么R.sub.2表示一个氢原子,R.sub.3表示一个氢原子或一个羟基,要么R.sub.2和R.sub.3一起表示一个键,R.sub.4表示一个氢原子或卤素原子,或其药用可接受的酸盐作为抗过敏和止痒药物。