申请人:Okamoto, Shosuke
公开号:EP0284632A1
公开(公告)日:1988-10-05
A phenylalanine derivative having the formula (I):
wherein A represents (a) H2N-, (b)
or
B represents (a)
(b)
or
wherein m is 0, 1, or 2 and n is 3, 4, or 5;
X represents (a) hydroxy, (b) nitro, (c) amino, (d) phenoxy which may be substituted with (i) halogen or (ii) nitro, (e) C1-C4 alkyloxy which may be substituted with (i) phenyl or (ii) benzoyl, (f) benzoyl, (g) pyridyloxy which may be substituted with (i) halogen or (ii) nitro, or (h) C1-C4 alkyl which may be substituted with halogen;
Y represents
or -OR3 wherein
R1 and R2 are independently (a) hydrogen, (b) phenyl which may be substituted with (i) benzoyl, (ii) C1-C4 alkylcarbonyl, (iii) C1-C4 alkyl which may be further substituted with C1-C4 alkoxycarbonyl or hydroxycarbonyl, (iv) C2-Cs alkenyl which may be further substituted with hydroxycarbonyl or C1-C4 alkoxycarbonyl, (v) C1-C4 alkoxycarbonyl, or (vi) amidino, (c) pyridyl which may be substituted with halogen or carboxyl (d) imidazolyl, (e) pyrimidyl, (f) tetrazolyl, (g) thiazolyl which may be substituted with C,-C4 alkyl which may be further substituted with C1-C4 alkoxycarbonyl, (h) C1-C6 alkyl which may be substituted with C1-C4 alkoxy, C1-C4 alkoxycarbonyl, phenyl, or benzoyl, (i) CS-C7 cycloalkyl which may be substituted with C1-C4 alkoxycarbonyl or (j) R' and R2 may form, with the nitrogen atom attached thereto, (i) pyperazyl which may be substituted on the nitrogen atom with C1-C4 alkyl which may be further substituted with phenyl, (ii) piperidino which may be substituted with carboxyl or C1-C4 alkoxycarbonyl, (iii) pyrrolidyl which may be substituted with C1-C4 alkoxycarbonyl, or (iv) morpholyl; and
R3 represents (a) hydrogen, (b) C1-C6 alkyl which may be substituted with (i) C1-C4 alkoxy, (ii) phenyl, or (iii) pyridyl, or (c) pyridyl; or a pharmaceutically acceptable acid salt thereof.
This phenylalanine derivative is effective as a proteinase.
具有以下式(I)的苯丙氨酸衍生物:其中A代表(a)H2N-,(b)或B代表(a)(b)或其中m为0、1或2,n为3、4或5;X代表(a)羟基,(b)硝基,(c)氨基,(d)苯氧基,其可以被(i)卤素或(ii)硝基取代,(e)C1-C4烷氧基,其可以被(i)苯基或(ii)苯甲酰基取代,(f)苯甲酰基,(g)吡啶氧基,其可以被(i)卤素或(ii)硝基取代,或(h)C1-C4烷基,其可以被卤素取代;Y代表或-OR3,其中R1和R2独立地为(a)氢,(b)苯基,其可以被(i)苯甲酰基,(ii)C1-C4烷基羰基,(iii)C1-C4烷基,其可以进一步被C1-C4烷氧羰基或羟基羰基取代,(iv)C2-Cs烯烃基,其可以进一步被羟基羰基或C1-C4烷氧羰基取代,(v)C1-C4烷氧羰基,或(vi)酰胺基,(c)吡啶基,其可以被卤素或羧基取代(d)咪唑基,(e)嘧啶基,(f)四唑基,(g)噻唑基,其可以被C1-C4烷基取代,其可以进一步被C1-C4烷氧羰基取代,(h)C1-C6烷基,其可以被C1-C4烷氧基,C1-C4烷氧羰基,苯基或苯甲酰基取代,(i)C5-C7环烷基,其可以被C1-C4烷氧羰基取代或(j)R'和R2可以与其连接的氮原子形成(i)哌嗪基,其可以在氮原子上被C1-C4烷基取代,其可以进一步被苯基取代,(ii)哌啶基,其可以被羧基或C1-C4烷氧羰基取代,(iii)吡咯基,其可以被C1-C4烷氧羰基取代,或(iv)吗啉基;R3代表(a)氢,(b)C1-C6烷基,其可以被(i)C1-C4烷氧基,(ii)苯基或(iii)吡啶基取代,或(c)吡啶;或其药学上可接受的酸盐。该苯丙氨酸衍生物作为蛋白酶具有有效性。