申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP0555537A2
公开(公告)日:1993-08-18
A peptide derivative of the formula:
wherein A is a group of the formula R"O-CO- (wherein R11 is a lower alkyl group or a phenyl group), or a group of the formula R12R13N-C(=O)- (wherein R12 is a lower alkyl group, a cycloalkyl group, a 1-adamantyl group, a phenyl group wherein one or two optional hydrogen atoms on the benzene ring may independently be replaced by a halogen atom, a trifluoromethyl group, a nitro group, an amino group or a formylamino group, a pyridyl group, or a thienyl group, R13 is a hydrogen atom, a lower alkyl group or a cycloalkyl group, or R12 and R13 form, together with the adjacent nitrogen atom, a 5- to 9-membered nitrogen-containing saturated heterocyclic ring having 4 to 8 carbon atoms, wherein among methylene groups forming the ring, one optional methylene group not adjacent to the above nitrogen atom may be replaced by a thio group, and one to four optional hydrogen atoms on the carbon atoms of the heterocyclic ring may independently be replaced by a lower alkyl group, and further two adjacent carbon atoms in the heterocyclic ring may form a benzo-fused ring); B is an oxygen atom or a group of the formula -NR2- (wherein R2 is a hydrogen atom or a lower alkyl group); R3 is a lower alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, a cycloalkyl lower alkyl group, an aryl lower alkyl group or a heterocyclic lower alkyl group; X1 is an oxygen atom or a group of the formula -NR4- (wherein R4 is a hydrogen atom or a lower alkyl group); R5 is a 3-indolylmethyl, 3-benzothienylmethyl, 1-naphthylmethyl or benzyl group wherein one or two optional hydrogen atoms on the ring may be replaced by a hydroxyl group, a halogen atom, a formyl group, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkylsulfinyl group, a lower alkylsulfonyl group, a lower alkoxycarbonyl group, a nitro group or a group of the formula R51-CO-X-2 wherein R51 is a lower alkyl group, a lower alkoxy group, or an amino group which may be substituted by a lower alkyl group, and X2 is an oxygen atom or a group of the formula -NR52- (wherein R52 is a hydrogen atom or a lower alkyl group)}; X3 is an oxygen atom or a sulfur atom; R6 is a hydrogen atom, or a lower alkyl or lower alkenyl group which may have a substituent selected from the group consisting of a hydroxyl group, a lower alkoxy group, a lower alkylthio group and a heterocyclic group; n is 0 or 1; Y is a hydroxymethyl group, a group of the formula CO2R71 (wherein R71 is a hydrogen atom or a lower alkyl group), a group of the formula CONHR72 (wherein R72 is a hydrogen atom or a lower alkyl group which may have a substituent selected from the group consisting of a hydroxyl group, a carboxyl group and a sulfo group), a 1 H-tetrazol-5-yl group, a sulfo group and a phosphono group; or a pharmaceutically acceptable salt thereof.
式中的肽衍生物:
其中 A 是式 R "O-CO- 的基团(其中 R11 是低级烷基或苯基),或式 R12R13N-C(=O)- 的基团(其中 R12 是低级烷基、环烷基、1-金刚烷基、苯基,其中苯环上的一个或两个任选氢原子可独立地被卤素原子、三氟甲基、硝基、氨基或甲酰氨基、吡啶基或噻吩基取代,R13 是氢原子、低级烷基或环烷基、或 R12 和 R13 与相邻的氮原子一起形成具有 4 至 8 个碳原子的 5 至 9 元含氮饱和杂环,其中在形成环的亚甲基中,不与上述氮原子相邻的一个任选亚甲基可被硫代基团取代,杂环碳原子上的 1 至 4 个任选氢原子可独立地被低级烷基取代,杂环中的另外两个相邻碳原子可形成苯并融合环),R12 和 R13 与相邻的氮原子一起形成具有 4 至 8 个碳原子的 5 至 9 元含氮饱和杂环,其中在形成环的亚甲基中,不与上述氮原子相邻的一个任选亚甲基可被硫代基团取代,杂环碳原子上的 1 至 4 个任选氢原子可独立地被低级烷基取代,杂环中的另外两个相邻碳原子可形成苯并融合环);B 是氧原子或式-NR2-的基团(其中 R2 是氢原子或低级烷基); R3 是低级烷基、环烷基、芳基、杂环基、环烷基低级烷基、芳基低级烷基或杂环低级烷基; X1 是氧原子或式-NR4-的基团(其中 R4 是氢原子或低级烷基);R5是3-吲哚甲基、3-苯并噻吩甲基、1-萘甲基或苄基,其中环上的一个或两个任选氢原子可被羟基、卤素原子、甲酰基、低级烷基、低级烷氧基、低级烷硫基、低级烷基亚磺酰基、低级烷基磺酰基取代、低级烷氧基羰基、硝基或式 R51-CO-X-2 的基团其中 R51 为低级烷基、低级烷氧基或可被低级烷基取代的氨基,X2 为氧原子或式 -NR52- 的基团(其中 R52 为氢原子或低级烷基)};X3 是氧原子或硫原子;R6 是氢原子,或低级烷基或低级烯基,其取代基可选自由羟基、低级烷氧基、低级烷硫基和杂环基组成的组;n 是 0 或 1;Y 是羟甲基、式 CO2R71 的基团(其中 R71 是氢原子或低级烷基)、式 CONHR72 的基团(其中 R72 是氢原子或低级烷基,其取代基可选自由羟基、羧基和磺基组成的组)、1H-四唑-5-基、磺基和膦基;或其药学上可接受的盐。