Methanol → HCID 68089279, compound

Participants

Reaction Steps

A mixture of 9.56 g (27.8 mmol) rac-(3S,4R)-1-Benzyl-4-(4-chloro-phenyl)-4-methyl-pyrrolidine-3-carboxylic acid methyl ester and 3.5 g (83.4 mmol) LiOH.H20 in 50 mL THF/50 mL water and 5 mL methanol was heated to reflux and stirred over night. The organic solvents were removed under vacuum and the aqueous phase was adjusted to pH=4-5 with 1N HCl aq. Water was decanted off the residue and THF was added. The mixture was diluted with ethyl acetate and washed with brine. The aqueous layer was back-extracted with ethyl acetate/THF (1:1) and the organic layers were evaporated to yield 8.9 g (97%) of the title compounds as off-white solid. MS m/e: 328.3 [M−H].

Provenance & Evidence