Boron tribromide → HCID 69309263, compound

Participants

Reaction Steps

A solution of BBr3 (1.0M DCM, 0.32 mL) was added dropwise to a DCM (2 mL) solution containing the intermediate from Step C (71 mg, 0.24 mmol). The solution was stirred at room temperature until no starting material remained by HPLC analysis. The reaction was quenched with MeOH (1 mL) and AcOH (1 mL). The solution was then concentrated and the residue partitioned between aqueous 1N HCl and ethyl acetate. The organic phase was washed with water and brine and dried over MgSO4. The filtered solution was concentrated and the residue purified by silica gel chromatography using a hexanes/ethyl acetate gradient to give the title compound. LCMS1 3.51 min (M-31)=251

Provenance & Evidence