1: acetic acid With 1,1'-carbonyldiimidazole in DMF (N,N-dimethyl-formamide) T=22 - 26°C; 0.666667 h; 2: [(methylamino)thioxomethyl]hydrazine With pyridine in DMF (N,N-dimethyl-formamide) T=20 - 100°C; 18 h;

1: in ethanol 6 h; Heating / reflux; 2: With sodium hydroxide in ethanol; water 1 h; Heating / reflux;

sodium hydroxide 0.5 h; Heating;

1: With dihydrogen peroxide; acetic acid in dichloromethane; water T=0 - 20°C; 2: With sodium hydroxide in water pH=12;