申请人:MERCK SHARP & DOHME LTD.
公开号:EP0303512A1
公开(公告)日:1989-02-15
The present invention provides a compound of formula (I):
or a pharmaceutically acceptable salt thereof, wherein one of R¹, R², R³ and R⁴ represents a hydrocarbon or hydrocarbyloxycarbonyl group and the remaining groups R¹, R², R³ and R⁴ independently represent hydrogen, hydrocarbon, hydrocarbyloxycarbonyl, halogen, hydroxy or C₁₋₆ alkoxy, or R¹ and R² or R³ and R⁴ may together represent the residue of a carbocyclic ring; R⁵ and R⁶ independently represent hydrogen, hydrocarbon, hydroxy or fluoro; R⁷ represents hydrogen or C₁₋₃ alkyl; and R⁸ represents methyl or ethyl; which compounds are useful as anticonvulsant agents and in the treatment of neurodegenerative diseases.
本发明提供了一种式(I)化合物:
或其药学上可接受的盐,其中 R¹、R²、R³ 和 R⁴ 中的一个代表烃基或烃基羰基,其余基团 R¹、R²、R³ 和 R⁴ 独立地代表氢、烃、烃基羰基、卤素、羟基或 C⁴ 、R³ 和 R⁴ 各自代表氢、烃、烃基、卤素、羟基或 C₁₋₆ 烷氧基,或 R¹ 和 R² 或 R³ 和 R⁴ 可共同代表碳环的残基;R⁵ 和 R⁶ 各自代表氢、烃、羟基或氟;R⁷ 代表氢或 C₁₋₃ 烷基;R⁸ 代表甲基或乙基;这些化合物可用作抗惊厥剂和治疗神经退行性疾病。