potassium ethyl xanthogenate 、
7-methoxy-1,2-(N-methylaziridino)mitosene 在
sodium dithionite 、
air 作用下,
反应 0.17h,
以25%的产率得到Dithiocarbonic acid S-((1R,2S)-9-ethoxythiocarbonylsulfanylmethyl-7-methoxy-6-methyl-2-methylamino-5,8-dioxo-2,3,5,8-tetrahydro-1H-pyrrolo[1,2-a]indol-1-yl) ester O-ethyl ester