1,2-Dichloroethane → HCID 57733404, compound

Participants

Reaction Steps

To a solution of 2-oxo-pyrrolidin-1-yl-acetic acid (1.56 g, 10.9 mmol) in 1,2-dichloroethane (40 ml) oxalyl chloride (0.95 ml, 10.9 mmol) and DMF (1 drop) were added with gas evolution observed. After stirring at r.t. for 1 hour, 2-fluoro-6-[((S)-1-phenyl-propylcarbamoyl)-methyl]-benzoic acid (1.56 g, 4.95 mmol), triethylamine (2.1 ml, 14.9 mmol) and DMAP (85 mg, 0.1 eq.) were added and stirred at r.t. overnight. It was partitioned between mixture of 0.2 M aq. HCl (100 ml)-brine (100 ml) and ethyl acetate (250 ml), washed with water and evaporated to give 1.89 g of crude title compound used in the next step without further purification.

Provenance & Evidence