Boron tribromide → HCID 9888680, compound

Participants

Reaction Steps

To a solution of the title compound from Step E (26 mg, 0.058 mmol) in dichloromethane (1 ml) at room temperature was added boron tribromide (1M in dichloromethane 0.12 ml, 0.12 mmol). A tan precipitation was immediately formed. After stirring at room temperature for about 30 minutes, the mixture was quenched with water (5 ml), and extracted with dichloromethane (3×10 ml). The combined extracts were dried, filtered, and concentrated. The residue was purified by preparative TLC (7% methanol in dichloromethane) to afford the title compound (19 mg) as a solid. MS (APCI−) Calc: 425.0, Found: 424.0 (M−1).

Provenance & Evidence