HCID 178522785, compound → HCID 178519982, compound

Participants

Reaction Steps

A mixture of step B product, 2-20-c, (2.22 g, 7.2 mmol) and Dess-Martain reagent (3.35 g, 7.9 mmol) in DCM (80 mL) was stirred at the ambient temperature for 1 h. The reaction solution was evaporated under vacuum to give a residue, which was purified by column chromatography with the eluent DCM:MeOH=60:1˜30:1 to afford the crude compound, 2-20-d, (1.84 g, 84%) as a solid.

Provenance & Evidence