申请人:Takeda Chemical Industries, Ltd.
公开号:US04603203A1
公开(公告)日:1986-07-29
Novel 3-aminopyrazolo[3,4-d]pyrimidine derivatives represented by the general formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represents an aliphatic hydrocarbon group; R.sub.3 and R.sub.4 each represents hydrogen, alkyl or acyl; R.sub.5 is alkyl, alkoxycarbonyl or formyl; and the dotted line designates the presence of two double bonds on the pyrazole ring, to which R.sub.5 is linked at either the 1- or 2-position and their salts, are useful for antiinflammatory, analgesic and antipyretic agents.
新型3-氨基吡唑并[3,4-d]嘧啶衍生物的一般公式(I)如下:其中R1和R2各代表一个脂肪烃基;R3和R4各代表氢、烷基或酰基;R5是烷基、烷氧羰基或甲酰基;虚线表示吡唑环上存在两个双键,R5连接在1-或2-位置,它们的盐用作抗炎、镇痛和退热药物。