(E)-Butyl-3-(2-(2-(ethoxycarbonylamino)-4-methoxyphenyl)-1-tosyl-4,5-dihydro-1H-pyrrol-3-yl)acrylate 在
N-甲基吡咯烷酮 、 potassium hydroxide 作用下,
以83%的产率得到ethyl-4-(2-butoxy-2-oxoethyl)-7-methoxy-1-tosyl-2,3-dihydro-1H-pyrrolo[3,2-c]quinoline-5(4H)-carboxylate