Trifluoroacetic acid → 1-Benzyl-4-(4,5-dibromo-thiophen-2-yl)-pyrrolidine-3-carboxylic acid trifluoroacetate
反応式
C([O:5][C:6]([CH:8]1[CH:12]([C:13]2[S:14][C:15]([Br:19])=[C:16]([Br:18])[CH:17]=2)[CH2:11][N:10]([CH2:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[CH2:9]1)=[O:7])(C)(C)C.[F:27][C:28]([F:33])([F:32])[C:29]([OH:31])=[O:30]>C(Cl)Cl>[F:27][C:28]([F:33])([F:32])[C:29]([OH:31])=[O:30].[CH2:20]([N:10]1[CH2:11][CH:12]([C:13]2[S:14][C:15]([Br:19])=[C:16]([Br:18])[CH:17]=2)[CH:8]([C:6]([OH:7])=[O:5])[CH2:9]1)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1参加物
4
実験手順
The product of step b) (2.6 g, 5.2 mmol) in CH2Cl2 (25 ml) and trifluoroacetic acid (TFA) (75 ml) was stirred at 22° C. for 16 hours. Next, the solvent was evaporated and toluene (50 ml) was added and subsequently evaporated in vacuo at 40° C. to remove residual TFA. The crude subtitle product was used without further purification.