申请人:G. D. Searle & Co.
公开号:US04988707A1
公开(公告)日:1991-01-29
This invention relates to substituted imidazopyridine dervatives having the following formula ##STR1## and isomers thereof; or a pharmaceutically acceptable acid addition salt thereof: wherein R.sub.1 and R.sub.2 are each independently selected from hydrogen; straight or branched chain alkyl of 1 to 15 carbon atoms; cycloalkyl of 3 to 8 carbon atoms; cycloalkyl which can be substituted once or more by alkyl of 1 to 6 carbon atoms; phenyl; phenyl which can be substituted once or more by alkyl of 1 to 6 carbon atoms or halogen; straight or branched alkenyl having 3 to 15 carbon atoms. y is phenyl or phenyl substituted once or more by alkyl of 1 to 6 carbon atoms; alkoxy wherein the alkyl is 1 to 6 carbon atoms; and halogen selected from the group consisting of bromo, fluoro or chloro. m is an integer from 0 to 5. n is an integer from 1 to 5. R.sub.3 is a group substituted at one or more of the 4, 6 or 7 positions of the pyridine ring said groups being independently selected from hydrogen, alkyl of 1 to 6 carbon atoms; halogen wherein the halogen is selected from bromo, fluoro, or chloro; or alkoxy wherein the alkyl is 1 to 6 carbon atoms; R.sub.4 is hydrogen or alkyl of 1 to 4 carbon atoms. useful in the treatment of diseases or disorders mediated by platelet-activating factor. This invention also relates to pharmaceutical compositions of such substituted imidazopyridines.
本发明涉及具有以下结构的替代咪唑吡啶衍生物 ##STR1## 及其异构体;或其药学上可接受的酸盐:其中R.sub.1和R.sub.2各自独立选择自氢;1至15个碳原子的直链或支链烷基;3至8个碳原子的环烷基;可被1至6个碳原子的烷基取代一次或多次的环烷基;苯基;可被1至6个碳原子的烷基或卤素取代一次或多次的苯基;具有3至15个碳原子的直链或支链烯基。y是苯基或可被1至6个碳原子的烷基取代一次或多次的苯基;烷氧基,其中烷基是1至6个碳原子;以及溴、氟或氯等卤素中选择的卤素。m是从0到5的整数。n是从1到5的整数。R.sub.3是取代在吡啶环的4、6或7位置的一个或多个基团,这些基团独立选择自氢、1至6个碳原子的烷基;卤素,其中卤素选择自溴、氟或氯;或烷氧基,其中烷基是1至6个碳原子;R.sub.4是氢或1至4个碳原子的烷基。用于治疗由血小板活化因子介导的疾病或紊乱。本发明还涉及这类替代咪唑吡啶的药物组合物。