申请人:Gyogyszerkutato Intezet
公开号:US05519019A1
公开(公告)日:1996-05-21
The invention relates to novel N-acyl-2,3-benzodiezapine derivatives of the general formula (I), their stereoisomers and acid-addition salts, pharmaceutical compositions containing them and a process for their preparation. In the general formula (I) R stands for a C.sub.1-6 alkanoyl group optionally substituted by a methoxy, cyano, carboxyl, amino, C.sub.1-4 alkylamino, di(C.sub.1-4 alkyl)amino, pyrrolidino, phthalimido or phenyl group, or by one or more halogen(s); or R is a benzoyl, cyclopropanecarbonyl, C.sub.1-5 alkylcarbamoyl or phenylcarbamoyl group; or R is absent when a double bond exists between the N(3) and C(4) atoms; R.sup.1 means hydrogen; or R.sup.1 is absent when a double bond exists between the N(3) and C(4) atoms; R.sup.2 means a C.sub.1-3 alkyl group; or R.sup.1 and R.sup.2 together stand for a methylene group and no double bond is present between the N(3) and C(4) atoms; R.sup.3 means hydrogen or a C.sub.1-4 alkanoyl group; R.sup.4 represents hydrogen; a C.sub.1-6 alkanoyl group optionally substituted by a methoxy, cyano, carboxyl, amino, C.sub.1-4 alkylamino, di(C.sub.1-4 alkyl)amino, pyrrolidino, phthalimido or phenyl group or by one or more halogen(s); as well as a benzoyl, palmitoyl, cyclopropane-carbonyl, C.sub.1-5 alkylcarbamoyl or phenylcarbamoyl group; and the dotted lines represent valence bonds optionally being present, with the proviso that no double bond exists between the N(3) and C(4) atoms when both R.sup.3 and R.sup.4 stand for hydrogen. The compounds of the general formula (I) possess valuable central nervous system effects, particularly muscle-relaxant, anticonvulsive and neuroprotective action. Thus, they may be useful for the treatment of various diseases of central nervous system origin.
该发明涉及一种新颖的N-酰基-2,3-苯并二氮杂平衍生物,其一般式为(I),它们的立体异构体和酸盐,含有它们的药物组合物以及它们的制备方法。在一般式(I)中,R代表一个C.sub.1-6烷酰基,可选地被一个甲氧基,氰基,羧基,氨基,C.sub.1-4烷基氨基,二(C.sub.1-4烷基)氨基,吡咯烷基,邻苯二甲酰亚胺基或苯基取代,或者一个或多个卤素; 或者R是苯甲酰基,环丙烷羰基,C.sub.1-5烷基氨基甲酰基或苯基氨基甲酰基; 或者当N(3)和C(4)原子之间存在双键时,R不存在; R.sup.1代表氢; 或者当N(3)和C(4)原子之间存在双键时,R.sup.1不存在; R.sup.2代表一个C.sub.1-3烷基; 或者R.sup.1和R.sup.2一起代表一个亚甲基基团,N(3)和C(4)原子之间没有双键存在; R.sup.3代表氢或一个C.sub.1-4烷酰基; R.sup.4代表氢; 一个C.sub.1-6烷酰基,可选地被一个甲氧基,氰基,羧基,氨基,C.sub.1-4烷基氨基,二(C.sub.1-4烷基)氨基,吡咯烷基,邻苯二甲酰亚胺基或苯基或一个或多个卤素取代; 以及一个苯甲酰基,棕榈酰基,环丙烷羰基,C.sub.1-5烷基氨基甲酰基或苯基氨基甲酰基; 虚线代表可能存在的价键,但要注意的是,当R.sup.3和R.sup.4都代表氢时,N(3)和C(4)原子之间不存在双键。一般式(I)的化合物具有有价值的中枢神经系统效应,特别是肌肉松弛、抗惊厥和神经保护作用。因此,它们可能对治疗中枢神经系统起源的各种疾病有用。