Water → HCID 25176288, compound

Participants

Reaction Conditions

Reaction Steps

[(S)-1-((S)-7-Fluoro-2,3-dihydro-benzo[1,4]dioxin-2-ylmethyl)-3-methyl-piperidin-3-yl]-methanol (2.5 g, 8.5 mmol) in tetrahydrofuran (10 ml) was added slowly to a mixture of sodium hydride, 60% in oil (1.354 g, 33.9 mmol) and tetrahydrofuran (15 ml). The reaction mixture was heated at 60° C. for 2 hours after the mixture was cooled down and iodomethane (0.685 ml, 11.0 mmol) in tetrahydrofuran (3 ml) was added. The mixture was stirred at RT for 1 hour, water (25 ml) was added carefully and the mixture was extracted twice with ethyl acetate. The combined ethyl acetate layers were evaporated to dryness. Ethyl acetate (20 ml) was added to the evaporation residue and was made acidic with aq HCl. The layers were separated and the water layer was made basic with aq NaOH and extracted twice with ethyl acetate. The combined ethyl acetate layers were evaporated to dryness to yield 2.34 g (89%) of the title compound.

Provenance & Evidence