1'-Substituted-spiro(imidazolidine-4,3'-indoline)-2,2',5-triones, processes for their manufacture and pharmaceutical compositions thereof
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0028906A1
公开(公告)日:1981-05-20
The invention concerns novel 1'-substituted spiro- midazolidine-4,3'-indofine)-2,2',5-triones of the formula:-
in which R' is (1-12C)alkyl; phenyl, naphthylmethyl or cinnamyl optionally bearing 1-2 halogeno substituents; or benzyl optionally bearing 1-3 substituents independently selected from halogeno, trifluoromethyl, (1-4C)-alkyl, (1-4C)alkoxy, nitro, cyano and hydroxy; and ring A optionally bears one substituent selected from halogeno, (1-4C)alkyl. (1-4C)alkoxy, nitro and hydroxy, or two substituents independently selected from halogeno (1-4C)alkyl and nitro; or a pharmaceutically acceptable salt thereof; but excluding those compounds wherein R1 is methyl,ethyl, n-propyl or unsubstituted benzyl and benzene ring A is unsubstituted.
The compounds of the invention are potent inhibitors of the enzyme aldose reductase and are of use in the treatment or prophylaxis of certain complications of diabetes or galactosemia. The invention also embraces processes for the manufacture of the novel compounds of formula 1, as well as pharmaceutical compositions of such compounds. A representative compound is 1'-(2-fluoro-4- bromobenzyl)-spiro(imidazolidine-4, 3'-indoline)-2, 2',5-trione.
本发明涉及新型 1'-取代螺-咪达唑烷-4,3'-吲哚菲)-2,2',5-三酮,其式为
其中R'是(1-12C)烷基;苯基、萘甲基或肉桂基,任选带有1-2个卤代基;或苄基,任选带有1-3个独立选自卤代基、三氟甲基、(1-4C)烷基、(1-4C)烷氧基、硝基、氰基和羟基的取代基;环A任选带有一个选自卤代基、(1-4C)烷基、(1-4C)烷氧基、硝基、氰基和羟基的取代基。(1-4C)烷氧基、硝基和羟基,或两个独立选自卤代(1-4C)烷基和硝基的取代基;或其药学上可接受的盐;但不包括 R1 为甲基、乙基、正丙基或未取代的苄基且苯环 A 未取代的化合物。
本发明的化合物是醛糖还原酶的强效抑制剂,可用于治疗或预防糖尿病或半乳糖血症的某些并发症。本发明还包括式 1 新型化合物的生产工艺以及此类化合物的药物组合物。具有代表性的化合物是 1'-(2-氟-4-溴苄基)-螺(咪唑啉-4,3'-吲哚啉)-2,2',5-三酮。