申请人:Hoffmann-La Roche Inc.
公开号:US08178538B2
公开(公告)日:2012-05-15
The present invention is concerned with novel pyridazinones of formula (I)
wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as physiologically acceptable salts and esters thereof. These compounds inhibit PDE10A and can be used for the treatment of CNS disorders.
本发明涉及式(I)的新型吡啶二酮,其中R1、R2、R3和R4在说明书和权利要求中定义,以及其生理上可接受的盐和酯。这些化合物抑制PDE10A,可用于治疗中枢神经系统疾病。