Ethyl Acetate → HCID 66990363, compound

Participants

Reaction Steps

Under ice-cooling, oxalyl chloride (0.23 mL) was added to a solution mixture of 5-phenylpyridine-3-carboxylic acid (0.48 g) in tetrahydrofuran (4.8 mL) and N,N-dimethylformamide (0.010 mL), followed by stirring at room temperature for 40 minutes. The reaction mixture was added to a solution mixture of methyl 2-amino-4-(2-((tert-butoxycarbonyl)(ethyl)amino)phenyl)benzoate (0.80 g) in tetrahydrofuran (8.0 mL) and pyridine (0.44 mL) under ice-cooling, followed by stirring at room temperature for 1 hour and 10 minutes. Ethyl acetate and water were added to the reaction mixture. The organic layer was separated, washed with a saturated aqueous solution of sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [eluent: 85-70% hexane/ethyl acetate] to obtain 0.86 g of methyl 4-(2-((tert-butoxycarbonyl)(ethyl)amino)phenyl)-2-(5-phenylpyridine-3-carboxamido)benzoate as a white solid.

Provenance & Evidence