2-methyl-4-(dimethylamino)1-4-phenyl-spiro[cyclohexane-1,8'-(5,6,8,9-tetrahydro-pyrano[3,4-b]-7-aza-indole)] 、
柠檬酸 以
乙醇 为溶剂,
反应 3.0h,
以73%的产率得到2-methyl-4-(dimethylamino)1-4-phenyl-spiro[cyclohexane-1,8'-(5,6,8,9-tetrahydro-pyrano[3,4-b]-7-aza-indole)] 2-hydroxypropane-1,2,3-tricarboxylate