反应详情

To a solution of 240 mg (0.54 mmol) of (3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-3-methyl-1-(pentan-3-yl)piperidin-2-one (Example 71, Step E) in THF (8 mL) and water (2.8 mL) added a catalytic amount of osmium tetroxide. After 1.25 h, 323 mg (1.51 mmol) of sodium periodate were added. The resulting light brown slurry was stirred at room temperature for 18.5 h, and then filtered through a fritted funnel. The filtrate was partially concentrated under reduced pressure, then was diluted with water and extracted with ethyl acetate (2×). The combined organic layers were washed with saturated aqueous sodium thiosulfate and then saturated aqueous sodium chloride. The organic layer was dried over Na2SO4, filtered and the filtrate was concentrated. The crude title compound was used directly in the next step.

1. filtrationfiltered through a fritted funnel
2. concentrationThe filtrate was partially concentrated under reduced pressure
3. additionwas diluted with water
4. extractionextracted with ethyl acetate (2×)
5. washThe combined organic layers were washed with saturated aqueous sodium thiosulfate
6. dry with materialThe organic layer was dried over Na2SO4
7. filtrationfiltered
8. concentrationthe filtrate was concentrated