To provide the compounds inhibiting PDE 7 selectively, and therefore, enhance cellular cAMP level. Consequently, the compound is useful for treating various kinds of disease such as allergic disease, inflammatory disease or immunologic disease. The compound is pyridinylpyrazolopyrimidinone compound represented by the following formula (IA) or (IB): especially, R1 is cyclohexyl or cycloheptyl group, R2 is methyl; R3 is a group: -NR5R6 or -S(O)0-2R8; hydrogen atom; nitro group; cyano group; a halogen atom; heteroaryl group; and R4 is methoxy or ethoxy group.
为了提供选择性抑制PDE 7的化合物,从而增强细胞内c
AMP水平。因此,该化合物对治疗各种疾病如过敏病、炎症性疾病或免疫疾病具有用处。该化合物是由以下式(IA)或(IB)表示的
吡啶基
吡唑吡嘧啶酮化合物:特别地,R1是环己基或环庚基,R2是甲基;R3是一个基团:-NR5R6或-S(O)0-2R8;氢原子;硝基基团;
氰基;卤原子;杂环基团;而R4是甲氧基或乙氧基。