Diethyl Ether → HCID 178458448, compound

Participants

Reaction Steps

To a solution of Example 55E (84 mg, 0.3 mmol) in THF (10 mL) at 0° C. was added dropwise a 2M solution of ethyl magnesium bromide in ether (0.6 mL, 1.2 mmol) and the resulting mixture was allowed to warm to room temperature for 6 hours. The mixture was quenched with saturated NH4Cl and concentrated under vacuum. The residue was passed through a Dowex® 50×8-400 ion exchange resin with 5% NH4OH as eluent. The ammonia solution was concentrated under vacuum and purified again by chromatography (silica gel, 9:1 CH2Cl2:ethanol) to provide 20 mg of the desired product.

Provenance & Evidence