Ethyl bromodifluoroacetate → 4-Benzyloxycarbonylamino-5-cyclohexyl-2,2-difluoro-3-hydroxypentanoic acid, ethyl ester
反応式
[CH2:1]([O:8][C:9]([NH:11][C@H:12]([CH:20]=[O:21])[CH2:13][CH:14]1[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[C:23]([F:30])([F:29])[C:24]([O:26][CH2:27][CH3:28])=[O:25]>[Zn]>[CH2:1]([O:8][C:9]([NH:11][CH:12]([CH2:13][CH:14]1[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19]1)[CH:20]([OH:21])[C:23]([F:30])([F:29])[C:24]([O:26][CH2:27][CH3:28])=[O:25])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
4
実験手順
The title compound was prepared in 37% yield from N-benzyloxycarbonyl-3-cyclohexylalaninal, ethyl bromodifluoroacetate and zinc by the procedure described in Example 1.