Cl.[CH3:2][CH:3]1[O:8][CH2:7][CH2:6][NH:5][CH2:4]1.[C:9]([N:11]=[C:12](SC)[S:13][CH3:14])#[N:10].C(=O)([O-])[O-].[Na+].[Na+]>C(O)C>[C:9]([N:11]=[C:12]([N:5]1[CH2:6][CH2:7][O:8][CH:3]([CH3:2])[CH2:4]1)[S:13][CH3:14])#[N:10]A mixture of 2-methylmorpholine hydrochloride (1.0 g, 9.9 mmol), dimethyl cyanocarbonimidodithioate (1.45 g, 9.9 mmol) and sodium carbonate (0.2 g, 1.9 mmol) in ethanol (50 mL) was stirred at ambient temperature overnight. The reaction mixture was concentrated and purified through silica gel chromatography to give the desired product (1.25 g, 63%). LC-MS: 200 (MH+).
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