Methanamine, N-methoxy-, hydrochloride (1:1) → (3RS,4SR)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid methoxy-methyl-amide

Participants

Reaction Steps

To a solution of N,O-dimethylhydroxylamine hydrochloride (0.41 g, 4.2 mmol) and 1.23 g (3.5 mmol) of (3RS,4SR)-1-Benzyl-4-(3,4-dichloro-phenyl)-pyrrolidine-3-carboxylic acid in DMF (20 mL) at RT was added Hunig base (1.79 ml, 10.5 mmol) and HATU (1.468 g, 3.9 mmol) and stirring was continued for one hour. The reaction mixture was diluted with ethyl acetate and washed with aq. ammonium chloride solution three times. The separated organic layer was washed with brine and dried on Na2SO4 and concentrated under vacuo yielding 1.36 g (99%) of the title compound as a light yellow oil. ES-MS m/e: 393.1 (M+H+).

Provenance & Evidence