申请人:Beecham Group, p.l.c.
公开号:US04853376A1
公开(公告)日:1989-08-01
Compounds of formula (I) and pharmaceutically acceptable salts thereof: ##STR1## wherein: X is NH; or O when Ar is of formula (a) and R.sub.2 is hydrogen or when Ar is a group of formula (b); R.sub.1 is hydrogen, C.sub.1-6 alkyl, phenyl or phenyl-C.sub.1-6 alkyl, which phenyl moieties may be substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy or halogen; Ar is a group of formula (a): ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are optional substituents; or Ar is a group of formula (b): ##STR3## wherein Z is CH.sub.2, O, S or NR.sub.7 wherein R.sub.7 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 alkenyl-methyl, phenyl or phenyl C.sub.1-4 alkyl either of which phenyl moieties may be substituted by one or two of halogen, CF.sub.3, C.sub.1-6 alkoxy or C.sub.1-6 alkyl; and Y is CH or N; or Z is CH or N and Y is NR.sub.a or CHR.sub.a where R.sub.a is as defined for R.sub.7 above; R.sub.b is present when the COX linkage is attached at the phenyl ring, and is selected from hydrogen, halogen, CF.sub.3, hydroxy, C.sub.1-6 alkoxy or C.sub.1-6 alkyl; R.sub.6 is an optional substituent having anti-emetic activity and may also have gastric motility enhancing activity, and/or 5-HT M-receptor antagonist activity, a process for their preparation and their use as pharmaceuticals.
公式(I)的化合物及其药学上可接受的盐:##STR1##其中:X为NH;或当Ar为公式(a)且R.sub.2为氢或当Ar为公式(b)的群体时,X为O;R.sub.1为氢,C.sub.1-6烷基,苯基或苯基-C.sub.1-6烷基,其中苯基基团可以被C.sub.1-6烷基,C.sub.1-6烷氧基或卤素取代;Ar为公式(a)的群体:##STR2##其中R.sub.2,R.sub.3,R.sub.4和R.sub.5是可选取代基;或者Ar为公式(b)的群体:##STR3##其中Z为CH.sub.2,O,S或NR.sub.7,其中R.sub.7为氢,C.sub.1-6烷基,C.sub.3-7烯基-甲基,苯基或苯基C.sub.1-4烷基,其中任一苯基基团可以被一个或两个卤素,CF.sub.3,C.sub.1-6烷氧基或C.sub.1-6烷基取代;Y为CH或N;或Z为CH或N且Y为NR.sub.a或CHR.sub.a,其中R.sub.a如上所定义为R.sub.7;当COX连接在苯环上时,R.sub.b存在,并且选自氢,卤素,CF.sub.3,羟基,C.sub.1-6烷氧基或C.sub.1-6烷基;R.sub.6是具有抗恶心作用的可选取代基,也可以具有胃动力增强作用和/或5-HT M-受体拮抗剂作用,其制备方法以及它们作为药物的用途。