This invention relates to compounds of the formula
where R₁ and R₂ are independently hydrogen or loweralkyl or R₁ and R₂ taken together with the carbon atom to which they are attached form a spiro-fused cycloalkane of 5 to 8 carbons; R₃ and R₄ are independently hydrogen or loweralkyl or R₃ and R₄ taken together with the carbon atom to which they are attached form a spiro-fused cycloalkane of 5 to 8 carbons; R₅ and R₆ taken together with the nitrogen atom to which they are attached are
where X in each occurrence is independently hydrogen, halogen, loweralkyl, hydroxy, nitro, amino, cyano, trifluoromethyl or methoxy; and m is 0, 1 or 2; the pharmaceutically acceptable acid addition salts thereof and where applicable the optical and geometrical isomers and racemic mixtures thereof. The compounds of this invention are useful as analgesic and antihypertensive agents.
本发明涉及式如下的化合物
其中 R₁ 和 R₂ 独立地为氢或低级烷基,或 R₁ 和 R₂ 与它们所连接的碳原子一起形成 5 至 8 个碳原子的螺融环烷;R₃ 和 R₄ 独立地为氢或低级烷基,或 R₃ 和 R₄ 与它们所连接的碳原子一起形成 5 至 8 个碳原子的螺稠合环
烷烃; R₅ 和 R₆ 与它们所连接的氮原子一起是
其中每次出现的 X 独立地为氢、卤素、低级烷基、羟基、硝基、
氨基、
氰基、三
氟甲基或甲氧基;且 m 为 0、1 或 2;其药学上可接受的酸加成盐,以及(如适用)其光学和几何异构体及其外消旋混合物。本发明的化合物可用作镇痛剂和降压药。