methyl 1-hydroxy-2-isopropoxycarbonyl-7,10-dimethoxy-4-oxo-1,2,3,6-tetrahydro-1H-pyrazino[1,2-b]isoquinoline-6-carboxylate 、
丁炔二酸二乙酯 以
甲苯 为溶剂,
反应 48.0h,
生成 (3RS,6RS,12SR)-diethyl 13-isopropoxycarbonyl-7,10-dimethoxy-6-methoxycarbonyl-4-oxo-3,4,6,12-tetrahydro-3,12-iminoazepino[1,2-b]isoquinoline-1,2-dicarboxylate