申请人:AstraZeneca AB
公开号:US07615642B2
公开(公告)日:2009-11-10
Compounds of formula I or pharmaceutically acceptable salts thereof:
wherein R1, R2, R3 and R4 are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
公式I的化合物或其药学上可接受的盐:其中R1、R2、R3和R4如规范中所定义,以及制备包括这些化合物的盐和药物组合物。它们在治疗中有用,特别是在缓解疼痛方面。