申请人:Sterling Winthrop Inc.
公开号:US05541187A1
公开(公告)日:1996-07-30
Novel 6-heterocyclyl-pyrazolo[3,4-d]pyrimidin-4-ones, useful in treating cardiovascular disease, are prepared by reacting a 5-amino-1H-pyrazole-4-carboxamide with heterocyclyl-carboxaldehyde or by reacting a 5-amino-1H-pyrazole-4-carbonitrile with a heterocyclylcarboxamidine, followed by diazotization and hydrolysis of the resulting 4-amino-6-heterocyclyl-pyrazolo[3,4-d]pyrimidine.
用于治疗心血管疾病的新型6-杂环基吡唑并[3,4-d]嘧啶-4-酮,通过将5-氨基-1H-吡唑-4-甲酰胺与杂环基羰基醛反应或将5-氨基-1H-吡唑-4-碳腈与杂环基羧酰胺反应,随后进行重氮化和水解,制备得到4-氨基-6-杂环基吡唑并[3,4-d]嘧啶。