The present invention is concerned with novel pyridazinone derivatives 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 as pharmaceuticals.
本发明涉及式(I)的新型
吡啶并
咪唑酮衍
生物,其中R1、R2、R3和R4如描述和权利要求中所定义,以及其生理上可接受的盐和
酯。这些化合物抑制PDE10A并可用作药物。