1: bis(carboxymethyl) trithiocarbonate With 1,1'-carbonyldiimidazole in tetrahydrofuran T=20°C; 1.5 h; 2: cyclohexylamine in tetrahydrofuran 4 h; Reflux;

1: carbon disulfide; cyclohexylamine With sodium hydroxide T=100°C; 0.0833333 h; Microwave irradiation; 2: chloroacetic acid T=40 - 100°C; 0.0833333 h; 3: With hydrogenchloride in water T=40 - 120°C; 0.5 h;

hydrogenchloride; iso-propyl nitrite in ethanol