申请人:Shih Kae-Shyang
公开号:US20100267949A1
公开(公告)日:2010-10-21
A method of synthesizing 6,7-substituted 4-anilino quinazoline employs 3,4-substituted benzoic acid as an initial reactant, and the 6,7-substituted 4-anilino quinazoline is obtained by an esterifying step, a nitrating step, a reducing step, a cyclizing step, and an one-pot reaction. In the above method, the initial reactant has low cost and yield. of the 6,7-substituted 4-anilino quinazoline is high, therefore, production cost can be reduced effectively, and competitive power of the product of the 6,7-substituted 4-anilino quinazoline can be improved.
合成6,7-取代的4-苯胺喹唑啉的方法采用3,4-取代苯甲酸作为初始反应物,通过酯化步骤、硝化步骤、还原步骤、环化步骤和一锅法反应得到6,7-取代的4-苯胺喹唑啉。在上述方法中,初始反应物成本低且产率高。6,7-取代的4-苯胺喹唑啉的产率高,因此可以有效降低生产成本,提高6,7-取代的4-苯胺喹唑啉产品的竞争力。