(R)-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-6-(3-hydroxypropyl)-1,3-oxazinan-2-one → 3-((R)-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)propanoic acid
反応式
[CH3:1][C:2]([CH3:24])([CH3:23])[C@@H:3]([N:5]1[CH2:10][CH2:9][C@@:8]([C:15]2[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=2)([CH2:11][CH2:12][CH2:13][OH:14])[O:7][C:6]1=[O:22])[CH3:4].CC(C)=[O:27].OS(O)(=O)=O.O=[Cr](=O)=O>CC(C)=O>[CH3:24][C:2]([CH3:23])([CH3:1])[C@@H:3]([N:5]1[CH2:10][CH2:9][C@:8]([CH2:11][CH2:12][C:13]([OH:27])=[O:14])([C:15]2[CH:16]=[CH:17][C:18]([F:21])=[CH:19][CH:20]=2)[O:7][C:6]1=[O:22])[CH3:4]参加物
4
実験手順
To a solution of (R)-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-6-(3-hydroxypropyl)-1,3-oxazinan-2-one (150 mg, 0.45 mmol) in acetone (10 mL) was added Jones reagent (2.5 mol/L, 0.5 mL) at 0° C., and the mixture was stirred at rt for 1 h. The reaction mixture was concentrated, and the mixture was extracted with EtOAc. The combined organic phase was concentrated to give the crude product, which was purified by preparative TLC to give 3-((R)-3-((S)-3,3-dimethylbutan-2-yl)-6-(4-fluorophenyl)-2-oxo-1,3-oxazinan-6-yl)propanoic acid (50 mg, 32%).