It is to provide a novel pyrazolone derivative represented by the following general formula (1), which is useful as a pharmaceutical and has a phosphodiesterase inhibitory action:
wherein R1,R2: C1-6 alkyl; R3,R4: H, X, C1-6 alkoxy; Z:O, S; A:AA, BB, wherein AA represents
wherein BB represents
wherein R5: H, C1-6 alkyl ; R6,R7: C1-6 alkyl.
提供一种新颖的
吡唑酮衍
生物, represented by the following general formula (1),该衍
生物可用作药物,并具有
磷酸二酯酶抑制作用:
其中 R1,R2:C1-6烷基;R3,R4:H,X,C1-6烷
氧基;Z:O,S;A:
AA,
BB,其中
AA代表
其中
BB代表
其中R5:H,C1-6烷基;R6,R7:C1-6烷基。