The present invention relates to a method of making a compound of the formula (I),wherein X1, X2 and R3-R4 are as defined herein. The method includes reacting a compound of the formula (II) with an amine of formula (III) (HNR3R4) in the presence of a Lewis Acid and a non-nucleophilic base. The 2,4-diamino pyrimidine moiety is a common component in a variety of biologically active drug-like molecules and pyrimidine derivatives have been found to be useful in the 10 treatment of abnormal cell growth, such as cancer, in mammals.
本发明涉及一种制备公式(I)化合物的方法,其中X1、X2和R3-R4如本文所定义。该方法包括在
路易斯酸和非亲核碱存在下,将公式(II)化合物与公式(III)胺(HNR3R4)反应。2,4-二
氨基嘧啶基团是各种
生物活性类药物分子中的常见组分,已发现
嘧啶衍
生物在哺乳动物的异常细胞生长治疗中很有用,例如癌症治疗。