Methanol → HCID 69010008, compound

Participants

Reaction Steps

To a stirred solution of 7α-carboxyandrostane-3,17-dione (680 mg) in CH2Cl2 (30 mL) at 0° C., MeOH (160 μL), DMAP (20 mg) and EDAC (800 mg) were added. After stirring overnight at room temperature, H2O was added and the mixture was extracted with CH2Cl2 (2×). The combined organic extracts were washed with H2O, brine, dried over Na2SO4, filtered and evaporated to dryness. The residue was purified by flash chromatography (SiO2, n-hexane/EtOAc 60/40) to give the title compound II-bc (500 mg, 70%). 1H-NMR (300 MHz, DMSO-d6, ppm from TMS): δ 3.63 (3H, s), 2.85 (1H, m), 2.50-0.75 (20H, m), 1.12 (3H, s), 0.86 (3H, s).

Provenance & Evidence