Hydrochloric Acid → HCID 66882565, compound

Participants

Reaction Steps

A mixture of 23 mg (0.04 mmol) of (1SR,2RS,3SR) 2-[4-(4-carboxymethoxy-2-oxo-2H-pyridin-1-yl)-2-fluoro-phenylcarbamoyl]-3-(4-chloro-phenylcarbamoyl) cyclopropanecarboxylic acid ethyl ester (example 155), 5 mg (0.06 mmol) of dimethylamine hydrochloride, 1 mg of 1-hydroxybenzotriazole, and 25 ul (0.23 mmol) of N-methylmorpholine in 2.5 ml of DMF was treated with 11 mg (0.06 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and stirred at RT during 10 hrs. The mixture was poured into a 2M aqueous solution of HCl and extracted with AcOEt. Drying of the combined organic phases over Na2SO4, filtration, evaporation of the solvent and chromatography on silica gel with AcOEt/MeOH 10:1 gave 22 mg (95%) of (1SR,2RS,3SR)-2-(4-chloro-phenylcarbamoyl)-3-[4-(4-dimethylcarbamoylmethoxy-2-oxo-2H-pyridin-1-yl)-2-fluoro-phenylcarbamoyl]-cyclopropanecarboxylic acid ethyl ester. Light brown solid. MS: 600 (M+H)+.

Provenance & Evidence