4-chloro-7-(3-chloropropoxy)-6-methoxyquinazoline 、 5-chloro-7-(4-methoxybut-1-yn-1-yl)-1,3-benzodioxol-4-amine 、
sodium hexamethyldisilazane 在
crude product 、 silica 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以There was thus obtained the starting material (389 mg, 69%) as a pale yellow solid的产率得到N-[5-chloro-7-(4-methoxybut-1-yn-1-yl)-1,3-benzodioxol-4-yl]-7-(3-chloropropoxy)-6-methoxyquinazolin-4-amine