1-Boc-3-氮杂环丁酮 、 9-[1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-7-chloro-2,3,4,5-tetrahydro-1,4-benzoxazepine-6-carbonitrile bishydrochloride 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以35%的产率得到tert-butyl 3-[9-[1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-7-chloro-6-cyano-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]azetidine-1-carboxylate