Trifluoroacetic acid → 6-Methyl-5-[(1-methylethyl)oxy]-1-(4-piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one
反応式
[CH3:1][C:2]1[C:3]([O:25][CH:26]([CH3:28])[CH3:27])=[CH:4][C:5]2[NH:9][C:8](=[O:10])[N:7]([CH:11]3[CH2:16][CH2:15][N:14](C(OC(C)(C)C)=O)[CH2:13][CH2:12]3)[C:6]=2[CH:24]=1.FC(F)(F)C(O)=O>ClCCl>[CH3:1][C:2]1[C:3]([O:25][CH:26]([CH3:28])[CH3:27])=[CH:4][C:5]2[NH:9][C:8](=[O:10])[N:7]([CH:11]3[CH2:12][CH2:13][NH:14][CH2:15][CH2:16]3)[C:6]=2[CH:24]=1参加物
4
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
A solution of 1,1-dimethylethyl 4-{6-methyl-5-[(1-methylethyl)oxy]-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl}-1-piperidinecarboxylate (D76) (0.14 mmol, 53 mg) in dichloromethane (1 mL) was treated with trifluoroacetic acid (1 mL) under argon at room temperature and was allowed to stir for 1 h. The mixture was then concentrated under reduced pressure, the residue was treated with 10% aqueous sodium carbonate solution and extracted 3 times with ethyl acetate. The organics were combined, dried and concentrated under reduced pressure to give the title compound (118 mg, >>100%). M+H 290.3.