N-terminally substituted dipeptide amides No. 2
申请人:G.D. Searle & Co.
公开号:EP0213481A2
公开(公告)日:1987-03-11
This invention encompasses compounds of the formula
and the pharmaceutically acceptable acid addition salts thereof wherein R¹ is lower alkoxy or -O-(CH₂)n-phenyl where the phenyl may be optionally substituted with halogen, -NO₂, -CN, -NH₂ or lower alkyl wherein n is 1 to 4; R² and R³ represent lower alkyl, halogen, lower alkoxy or one of R² or R³ is hydrogen and the other is lower alkyl, lower alkoxy, or halogen; R⁴, R⁵, R⁷, R⁸, and R⁹ represent hydrogen or lower alkyl, R⁶ represents hydrogen, lower alkyl, lower alkenyl, or -(CH₂)m-cycloalkyl wherein m is 1 to 4 and the cycloalkyl has 3 to 8 carbon atoms; R¹⁰ is -(CH₂)p-phenyl wherein p is 1 to 4; and v represents an asymmetric carbon that may be racemic or have the D or L Configuration; w represents an asymmetric carbon when R⁷ and R⁸ are not the same that may be racemic or have the D or L configuration. This invention also encompasses compounds where R¹ is hydroxy, provided at least one of R⁴, R⁵, R⁶ or R⁹ is lower alkyl. The compounds of this invention are useful analgesic agents.
本发明包括以下式子的化合物
及其药学上可接受的酸加成盐 其中 R¹ 为低级烷氧基或-O-(CH₂)n-苯基,其中苯基可任选被卤素、-NO₂、-CN、-NH₂ 或低级烷基取代,其中 n 为 1 至 4;R² 和 R³ 代表低级烷基、卤素、低级烷氧基,或 R² 或 R³ 中的一个为氢,另一个为低级烷基、低级烷氧基或卤素;R⁴、R⁵、R⁷、R⁸ 和 R𠞙 代表氢或低级烷基,R⁶ 代表氢、低级烷基、低级烯基或-(CH₂)m-环烷基,其中 m 为 1 至 4,环烷基具有 3 至 8 个碳原子;R¹⁰ 是-(CH₂)对苯基,其中 p 为 1 至 4;当 R⁷和 R⁸ 不相同时,w 代表不对称碳,它可能是外消旋的或具有 D 或 L 构型。本发明还包括 R¹ 为羟基的化合物,条件是 R⁴、R⁵、R⁶ 或 R⁹ 中至少有一个是低级烷基。本发明的化合物是有用的镇痛剂。