HCID 17960600, compound → HCID 17960601, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the title compound of Example 1, Step A (0.35 g, 1.71 mmol) in dimethylformamide (20 mL) was added activated manganese dioxide (4.46 g, 51.3 mmol) and the mixture was heated at 120° C. for 2 hours. After cooling, the mixture was diluted with ethyl acetate, filtered through a pad of Celite® and washed three times with water and once with a saturated solution of sodium chloride. The organic phase was dried (magnesium sulfate), concentrated and purified by flash column chromatography (silica gel, 60% then 80% ethyl ether in hexanes then ethyl ether) to give the title compound of Step A (0.1 g) as a white solid.

Provenance & Evidence