4-(2-Cyclopropyl-6,7-dimethoxy-quinazolin-4-yl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester 、
盐酸 在
乙酸乙酯 作用下,
以
盐酸1,4-二恶烷 为溶剂,
反应 1.0h,
以to afford 2-cyclopropyl-6,7-dimethoxy-4-(2-methyl-piperazin-1-yl)-quinazoline hydrochloride (93) (260 mg, yield: 71%) as yellow solid and HCl salt的产率得到2-Cyclopropyl-6,7-dimethoxy-4-(2-methyl-piperazin-1-yl)-quinazoline hydrochloride