申请人:Pfizer Inc
公开号:US06479516B1
公开(公告)日:2002-11-12
There is provided a compound of formula I,
wherein R1, R2, R3, X and Y have meanings given in the description, which are useful in the prophylaxis and in the treatment of pruritus.
提供一种具有化学式I的化合物,其中R1、R2、R3、X和Y具有描述中给出的含义,可用于预防和治疗瘙痒。