Triethylamine → 1-Tert-butoxycarbonylmethyl-3-methoxymethyl-pyrrolidine-3-carboxylic acid methyl ester

Participants

Reaction Steps

To a stirred mixture of 3-methoxymethyl-pyrrolidine-3-carboxylic acid methyl ester (140 mg, 0.81 mmol), triethylamine (112 μl, 0.82 mmol) and cesium carbonate (263 mg, 0.81 mmol) in acetonitrile (2 ml) was added tert-butyl bromoacetate (119 μl, 0.81 mmol) slowly. The mixture was stirred for 15 minutes, filtered and concentrated. The residue was purified by column chromatography on silica gel. Elution with a solution of ethyl acetate and hexanes (1:2) provided 118 mg (51%) of the title compound.

Provenance & Evidence