7-chloro-1-[2-methyl-4-(2-methylbenzamido)benzoyl]-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl methylaminoacetate 、
4-溴甲基-5-甲基-1,3-间二氧杂环戊烯-2-酮 在
三乙胺 、
盐酸 作用下,
以
乙腈 、
乙酸乙酯 为溶剂,
以23%的产率得到{7-chloro-1-[2-methyl-4-(2-methyl-benzoylamino)-benzoyl]-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl} [methyl-(5-methyl-2-oxo-1,3-dioxol-4-yl-methyl)-amino]acetate hydrochloride