Trifluoroacetic acid → HCID 68839756、化合物
反応式
C(OC(=O)[NH:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][CH2:10][C@H:9]1[CH2:14][C:15]1[CH:20]=[CH:19][C:18]([N:21]2[CH2:25][C:24](=[O:26])[N:23]([CH2:27][CH2:28][Si:29]([CH3:32])([CH3:31])[CH3:30])[S:22]2(=[O:34])=[O:33])=[C:17]([O:35][CH2:36][C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)[CH:16]=1)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][CH2:10][C@H:9]1[CH2:14][C:15]1[CH:20]=[CH:19][C:18]([N:21]2[S:22](=[O:34])(=[O:33])[N:23]([CH2:27][CH2:28][Si:29]([CH3:31])([CH3:32])[CH3:30])[C:24](=[O:26])[CH2:25]2)=[C:17]([O:35][CH2:36][C:37]2[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=2)[CH:16]=1参加物
4
実験手順
To a solution of ((1R*,2S*)-2-{3-benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-benzyl}-cyclohexyl)-carbamic acid tert-butyl ester (Example 66, step C) (450 mg, 0.714 mmol) in methylene chloride (5 mL) is added TFA (5 mL) and the solution is stirred at RT for 15 min. The solvent is removed under reduced pressure to give the title compound which is used directly in the next step.