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, R
1
is cyclohexyl or cycloheptyl group, R
2
is methyl; R
3
is a group: —NR
5
R
6
or —S(O)
0-2
R
8
; hydrogen atom; nitro group; cyano group; a halogen atom; heteroaryl group; and R
4
is methoxy or ethoxy group.
为了提供具有选择性抑制PDE7的化合物,从而增强细胞内c
AMP水平。因此,该化合物可用于治疗各种疾病,例如过敏性疾病、炎症性疾病或免疫性疾病。该化合物是由以下式子(IA)或(IB)表示的
吡啶基
嘧啶酮化合物:特别地,R1是环己基或环庚基,R2是甲基;R3是一种基团:—NR5R6或—S(O)0-2R8;氢原子;硝基;
氰基;卤素原子;杂环基团;R4是甲氧基或乙氧基。