Water → (r)-1-Cyclohex-3-enyl-3-[3,5-dichloro-4'-(4-trifluoromethyl-piperidine-1-carbonyl)-biphenyl-4-ylmethyl]-pyrrolidin-2-one

Participants

Reaction Conditions

Reaction Steps

Dissolve tetrabutylammonium fluoride trihydrate (0.436 g, 1.36 mmol) in 5 ml of acetonitrile. Add water (0.05 ml. 2.72 mmol) and stir for 10 minutes. Add trans-methanesulfonic acid 4-{(R)-3-[3,5-dichloro-4′-(4-trifluoromethyl-piperidine-1-carbonyl)-biphenyl-4-ylmethyl]-2-oxo-pyrrolidin-1-yl}-cyclohexyl ester (0.458 g, 0.68 mmol). Stir at 80° C. for 12 hours. Quench with saturated aqueous sodium bicarbonate and extract with ethyl acetate. Wash the extract with brine. Dry the organic layer over magnesium sulfate, filter, and concentrate under vacuum. Purify by silica gel chromatography recover 0.036 g (9%) of the title compound: MS (m/z): 579 (M+).

Provenance & Evidence