Acetic Anhydride → HCID 57847067, compound

Participants

Reaction Steps

To a solution of the compound (163 mg, 0.377 mmol) synthesized in Example 73 in tetrahydrofuran (3 ml) was added acetic anhydride (0.179 ml, 1.88 mmol) under ice-cooling, and the mixture was stirred at room temperature for 10 min. The reaction mixture was concentrated under reduced pressure, and the residue was subjected to column chromatography using basic silica gel and eluted with hexane-ethyl acetate (8:2-0:1, v/v) to give the title compound (117 mg, 60%) as an amorphous form.

Provenance & Evidence