申请人:Clin Midy
公开号:US03966793A1
公开(公告)日:1976-06-29
Intermediates for preparing novel benzodiazepines having the formula ##SPC1## In which R.sub.1 is a hydrogen or halogen atom or a trifluoromethyl, loweralkyl, loweralkoxy, nitro or amino group; R.sub.2 is a furyl, a thienyl, cyclohexyl, a loweralkyl group or a phenyl group which may be substituted by a halogen atom or by a trifluoromethyl, nitro, loweralkoxy or loweralkyl group; and R.sub.3 is a hydrogen atom or a loweralkyl group; and R.sub.4 is lowercarbalkoxy, carbamoyl, N-loweralkylcarbamoyl, N,N-diloweralkylcarbamoyl, N-(diloweralkylaminoalkyl)carbamoyl, a group having the formula --COOCat in which Cat is a cation of an alkali metal or a semication of an alkaline earth metal or COOCat.CatOH, said intermediates being ortho-aminoaryl ketimines having the formula ##SPC2## Wherein R is hydrogen or ##EQU1## R.sub.1, R.sub.2, and R.sub.3 are as defined above, R.sub.4 is a hydrogen atom, a lowercarbalkoxy, carbamoyl, N-loweralkylcarbamoyl, N,N-diloweralkylcarbamoyl, N-(diloweralkylaminoalkyl)-carbamoyl, alkyl or substituted alkyl group; and R.sub.5 is a loweralkyl group.
用于制备具有以下结构的新型苯二氮卓类化合物的中间体:其中R.sub.1是氢原子或卤素原子或三氟甲基、低烷基、低烷氧基、硝基或氨基基团;R.sub.2是呋喃基、噻吩基、环己基、低烷基基团或苯基,苯基可能被卤素原子或三氟甲基、硝基、低烷氧基或低烷基基团取代;R.sub.3是氢原子或低烷基基团;R.sub.4是低碳基酯、氨基甲酰、N-低烷基氨基甲酰、N,N-二低烷基氨基甲酰、N-(二低烷基氨基烷基)氨基甲酰、具有以下结构的基团--COOCat,其中Cat是碱金属的阳离子或碱土金属的半阳离子或COOCat.CatOH,所述中间体是具有以下结构的邻氨基芳基酮亚胺:其中R是氢或R.sub.1、R.sub.2和R.sub.3如上所定义,R.sub.4是氢原子、低碳基酯、氨基甲酰、N-低烷基氨基甲酰、N,N-二低烷基氨基甲酰、N-(二低烷基氨基烷基)-氨基甲酰、烷基或取代烷基基团;R.sub.5是低烷基基团。