Sodium Methoxide → HCID 68480332, compound

Participants

Reaction Steps

A mixture of 2.2 g (5.9 mmol) (3SR,4RS)-3-(3,4-Difluoro-phenyl)-piperidine-1,4-dicarboxylic acid 1-tert-butyl ester 4-ethyl ester and 0.18 mL NaOMe (5.4N in methanol) in 60 mL methanol was first stirred at room temperature and subsequently ar reflux until consumption of the starting material. The mixture was evaporated to dryness and the residue subjected to column chromatography on silica eluting with a gradient formed from ethyl acetate and heptane to afford after evaporation of the product containing fractions 1.5 g (71%) of the title compound as colorless oil. MS (m/e): 256.1 [(M+H-Boc)+].

Provenance & Evidence