申请人:Daiichi Suntory Pharma Co., Ltd.
公开号:EP1454897A1
公开(公告)日:2004-09-08
Pyrazolopyrimidinone derivatives expressed by the following general formula (IA) or (IB):
and the following general formula (IA') or (IB'):
where the symbols are as disclosed in the specification, are provided as desired compounds.
These compounds have the action of selectively inhibiting PDE7, thereby increasing the intracellular cAMP level and inhibiting the activation of T cells. Thus, they are useful for prevention and treatment of various allergic diseases and inflammatory or immunological diseases.
由以下通式(IA)或(IB)表示的吡唑嘧啶酮衍生物:
和以下通式(IA')或(IB')表示的吡唑嘧啶酮衍生物:
其中的符号如说明书中所披露的,作为所需的化合物提供。
这些化合物具有选择性抑制 PDE7 的作用,从而提高细胞内 cAMP 水平并抑制 T 细胞的活化。因此,它们可用于预防和治疗各种过敏性疾病和炎症性或免疫性疾病。