Water → HCID 178516682, compound

Participants

Reaction Conditions

Reaction Steps

Dissolve TBAF.3H2O (1.595 g, 1.30 mmol) in 10 ml of acetonitrile. Add water (0.18 ml, 9.91 mmol) and stir for 10 minutes. Add (R)-trans-Methanesulfonic acid 4-[3-(4-benzyloxy-2,6-dichloro-benzyl)-2-oxo-pyrrolidin-1-yl]-cyclohexyl ester (Preparation 14) (1.30 g, 2.48 mmol). Stir at 80° C. for 12 hours. Quench with saturated NaHCO3 and extract with ethyl acetate. Wash the extract with brine. Dry over magnesium sulfate, filter, and concentrate. After flash column chromatography receive 0.230 g (21%) of the title compound: Mass spectrum (apci) m/z=450 (M+H).

Provenance & Evidence