Purine derivatives having phosphodiesterase iv inhibition activity
申请人:Euro-Celtique, S.A.
公开号:US06413975B1
公开(公告)日:2002-07-02
Disclosed are compounds of the formula:
wherein
R3, R6a, R6b and R8 are substituted as disclosed herein. The compounds are effective in effecting PDE IV inhibition in patients in need thereof.