1,8-Naphthyridine derivatives, their preparation, pharmaceutical compositions containing them
申请人:AMERICAN HOME PRODUCTS CORPORATION
公开号:EP0018735A1
公开(公告)日:1980-11-12
Compounds of formula
in which R' is hydrogen, alkyl, cycloalkyl of 5 to 6 carbon atoms, alken(3,4,5 or 6)-yl of 3 to6 carbon atoms oralkyn(3,4,5 or 6)-yl of 3 to 6 carbon atoms; R2 is-CN,-CO2H,-CO2R7 where R7 is alkyl, -CONHNH2 or
where R8 and R9 are independently hydrogen or alkyl; R3 and R4 are independently hydrogen, alkyl, hydroxyalkyl, dialkylaminoalkyl of 4 to 8 carbon atoms, alkanoyl of 2 to carbon atoms, haloalkanoyl of 2 to 4 carbon atoms, or when taken together with the nitrogen atom to which they are attached. R3 and R4 complete a defined heterocyclic group; R6 and R6 are independently hydrogen; alkyl of 1 to 4 carbon atoms, halo, alkylamino of 1 to4 carbon atoms, or alkoxy; or a pharmaceutically acceptable saltthereof are disclosed which have gastric anti-secretory, and in some cases diuretic, activity and are useful in pharmaceutical compositions especially for treatment of peptic ulcers. Also described are processes for preparing the compounds and 4-halo-1, 8-naphthyridine intermediates useful in some of the processes.
式化合物
其中 R' 是氢、烷基、5 至 6 个碳原子的环烷基、3 至 6 个碳原子的烯(3,4,5 或 6)基或 3 至 6 个碳原子的炔(3,4,5 或 6)基;R2 是-CN、-CO2H、-CO2R7(其中 R7 是烷基)、-CONHNH2 或
其中 R8 和 R9 独立地为氢或烷基;R3 和 R4 独立地为氢、烷基、羟基烷基、4 至 8 个碳原子的二烷基氨基烷基、2 至 4 个碳原子的烷酰基、2 至 4 个碳原子的卤代烷酰基,或与所连接的氮原子一起。R3 和 R4 完成一个定义的杂环基团;R6 和 R6 独立地为氢、1 至 4 个碳原子的烷基、卤代、1 至 4 个碳原子的烷基氨基或烷氧基;或其药学上可接受的盐,这些化合物具有抗胃分泌活性,在某些情况下还具有利尿活性,可用于药物组合物中,特别是用于治疗消化性溃疡。还描述了制备这些化合物的工艺以及在某些工艺中有用的 4-卤-1,8-萘啶中间体。