[CH2:1]([NH:8][C:9]([C:11]1[S:15][C:14]([N:16](C)[C:17](=O)OC(C)(C)C)=[N:13][C:12]=1[CH3:25])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O.C1(C)C=CC=CC=1>ClCCl>[CH2:1]([NH:8][C:9]([C:11]1[S:15][C:14]([NH:16][CH3:17])=[N:13][C:12]=1[CH3:25])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1To a solution of tert-butyl 5-(benzylcarbamoyl)-4-methylthiazol-2-yl(methyl)carbamate (0.030 g, 0.083 mmol) in dichloromethane (1 mL) was added trifluoroacetic acid (1 mL) and the resultant mixture was stirred at ambient temperature for 4 h. Toluene (0.5 mL) was added and the reaction mixture was concentrated in vacuo. The residue was triturated with diethyl ether and concentrated in vacuo and dried in vacuum. The crude N-benzyl-4-methyl-2-(methylamino)thiazole-5-carboxamide was obtained and used directly in the next step.
Wird geladen…