Hydrochloric Acid → HCID 131733876, compound

Participants

Reaction Steps

To a solution of 28B (450 mg, 0.753 mmol) in EtOAc (6 mL), was added HCl (4N, 6 mL). The mixture was stirred rt for 2 h, and concentrated. The residue was dissolved in DMF (10 ml), N,N-diisopropylethylamine (0.525 ml, 3.01 mmol) was added, followed by N-(benzyloxycarbonyloxy) succinimide (206 mg, 0.828 mmol). The mixture was stirred rt for 1 h, quenched with water, extracted with EtOAc (3×30 ml). The organic layer was washed with brine, dried (Na2SO4) and concentrated. The crude product was purified by flash chromatography (0-60% EtOAc in hexanes) to give 28C (376 mg, 0.595 mmol, 79% yield). MS (ESI) m/z: 631.0 (M+H)+.

Provenance & Evidence