Cl[CH2:2][C:3]1[N:4]=[C:5]([NH2:8])[S:6][CH:7]=1.[CH3:9][NH2:10]>>[CH3:9][NH:10][CH2:2][C:3]1[N:4]=[C:5]([NH2:8])[S:6][CH:7]=14-(Chloromethyl)-1,3-thiazol-2-amine (490 mg, 2.65 mmol) was stirred in 40% aqueous methylamine (25 ml) overnight. The reaction mixture was evaporated. The residue was diluted with 95:5 dichloromethane/methanol (25 ml), was dried over sodium sulfate, was filtered and was evaporated to provide 4-[(methylamino)methyl]-1,3-thiazol-2-amine that was used without purification. LCMS: (M+H)+: 144.0.
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