5-Methanesulfonylmethyl-1,3-dihydro-indol-2-one 、
3-(3-dimethylamino-propyl)-4,5,6,7-tetrahydro-1H-indole-2-carbaldehyde 在
base 作用下,
生成 3-[1-[3-(3-Dimethylamino-propyl)-4,5,6,7-tetrahydro-1H-indol-2-yl]-meth-(Z)-ylidene]-5-methanesulfonylmethyl-1,3-dihydro-indol-2-one