反应详情

Methanesulfonic acid (21 μl) and a 30% aqueous hydrogen peroxide solution (54 μl) were added to a solution of tert-butyl {(3R)-1-[5-(2-chlorobenzyl)-7-formyl-1,3-dimethyl-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrrolo[3,2-d]pyrimidin-6-yl]piperidin-3-yl}carbamate (132 mg) in methanol (4 ml), and the resulting mixture was stirred at room temperature for 2 hours. A 10% aqueous sodium sulfite solution was added to the reaction solution, followed by extraction with ethyl acetate (50 ml). The organic layer was dried over sodium sulfate and filtered and the filtrate was concentrated under reduced pressure. The resulting residue was purified by a silica gel column chromatography (hexane/ethyl acetate=1/2) to obtain the title compound (54 mg).

1. extractionfollowed by extraction with ethyl acetate (50 ml)
2. dry with materialThe organic layer was dried over sodium sulfate
3. filtrationfiltered
4. concentrationthe filtrate was concentrated under reduced pressure
5. customThe resulting residue was purified by a silica gel column chromatography (hexane/ethyl acetate=1/2)