Schiff bases formed from the condensation reaction of S-benzyldithiocarbazate (SBDTC) and S- methyldithiocarbazate (SMDTC) with selected diketones containing isatin derivatives namely isatin,5- fluroisatin,5-chloroisatin,5-bromoisatin and methylisatin Это и многое другое вы найдете в книге Dithiocarbazates: Coordination compounds and biological activities (Mohd Abdul Fatah Abdul Manan)