4-(6-bromo-7-methyl-2,3-dioxo-2,3-dihydro-indol-1-ylmethyl)-N,N-dimethyl-benzenesulfonamide 、
肼 在
4-(6-bromo-7-methyl-2-oxo-2,3-dihydro-indol-1-ylmethyl)-N,N-dimethyl-benzenesulfonamide 作用下,
以to provide the crude title compound of 12B的产率得到4-(6-bromo-7-methyl-2-oxo-2,3-dihydro-indol-1-ylmethyl)-N,N-dimethyl-benzenesulfonamide