Compounds of formula (I) or a pharmaceutically acceptable salt thereof:
wherein:
R1 is C1-6 alkyl;
R2 is amino or C1-7 acylamino;
R3 is halo or C1-6 alkylthio;
R4 and R5 are independently selected from hydrogen, C1-6 alkyl, phenyl or phenyl C1-4 alkyl any of which phenyl moieties may be substituted by one or two of halo, CF3, C1-6 alkoxy or C1-6 alkyl;
R6 is C1-7 alkyl, -(CH2)sR7, s being 0 to 2 and R7 being C3-8 cycloalkyl, -(CH2)tRB, t being 1 or 2 and R8 being thienyl or phenyl optionally substituted by one or two substituents selected from C1-4 alkoxy, trifluoromethyl, halogen, nitro, carboxy, esterified carboxy and C1-4 alkyl optionally substituted by hydroxy, C1-4 alkoxy, carboxy, esterified carboxy or in vivo hydrolysable acyloxy; and n is 0 to 3; having gashic motility enhancing activity and anti-emetic activity, a process for their preparation and their use as pharmaceuticals.
式 (I) 的化合物或其药学上可接受的盐:
其中
R1 是 C1-6 烷基
R2 是
氨基或 C1-7 乙酰
氨基
R3 是卤代或 C1-6 烷
硫基;
R4和R5独立选自氢、C1-6烷基、苯基或苯基C1-4烷基,其中任何苯基可被卤素、
CF3、C1-6烷氧基或C1-6烷基中的一个或两个取代;
R6 是 C1-7 烷基,-(
CH2)sR7,s 是 0 至 2,R7 是 C3-8 环烷基,-( )tRB,t 是 1 或 2,R8 是
噻吩基或苯基,可任选被一个或两个取代基取代,这些取代基选自 C1-4 烷氧基、三
氟甲基、卤素、硝基、羧基、酯化羧基和可任选被羟基、C1-4 烷氧基、羧基、酯化羧基或体内可
水解酰氧基取代的 C1-4 烷基;且 n 为 0 至 3;具有增强胃肠蠕动活性和止吐活性,其制备方法及其作为药物的用途。