申请人:Hoffmann-La Roche, Inc.
公开号:US04075209A1
公开(公告)日:1978-02-21
A process for the preparation of 2,4-diamino-5-benzylpyrimidines by reacting 4-bromomethylisoxazole with an aromatic compound of the formula ##STR1## wherein R, R.sub.1 and R.sub.2 are hydrogen, lower alkoxy and lower alkyl, AND SUBSEQUENTLY TREATING THE REACTION PRODUCT WITH A GUANIDINE SALT, IS DESCRIBED.
描述了一种通过将4-溴甲基异噁唑与具有以下结构的芳香化合物反应制备2,4-二氨基-5-苄基嘧啶的方法,其中R、R.sub.1和R.sub.2分别为氢、低烷氧基和低烷基,然后用胍盐处理反应产物。