8-methyl-5-(4-(N,N-dimethylsulfamoyl)phenyl)-6,7,8,9-tetrahydro-1H-pyrrolo[3,2-h]isoquinoline-2,3-dione 、
4-(3-hydroxyimino-8-methyl-2-oxo-2,3,6,7,8,9-hexahydro-1H-pyrrolo[3,2-h]isoquinolin-5-yl)-N,N-dimethyl-benzenesulfonamide 在
水 、
乙醇 作用下,
反应 16.0h,
以to give 69.8 g (67%) of crude isatin derivative as the hydrosulfate的产率得到靛红