反应详情

To a solution of 560 mg of (13E)-(5RS,6RS,9α,11α,15S)-5-phenylseleno-6,9-epoxy-11,15-bis(tetrahydropyran-2-yloxy)prost-13-enoic acid methyl ester (prepared as described in Example 6) in a mixture of 6 ml of ethyl acetate and 3 ml of tetrahydrofuran was added 0.5 ml of 30% hydrogen peroxide and 100 mg of sodium bicarbonate, and the reaction mixture was then stirred for one hour. Afterwards it was extracted with ethyl acetate. The extract was washed with an aqueous solution of sodium carbonate, water and an aqueous solution of sodium chloride, dried over magnesium sulphate and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel using a mixture of benzene and ethyl acetate (6:1) as eluent to give 380 mg of the title compound having the following physical characteristics:

1. extractionAfterwards it was extracted with ethyl acetate
2. washThe extract was washed with an aqueous solution of sodium carbonate, water
3. dry with materialan aqueous solution of sodium chloride, dried over magnesium sulphate
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by column chromatography on silica gel using
6. additiona mixture of benzene and ethyl acetate (6:1) as eluent