Ammonia → HCID 19093751, compound

Participants

Reaction Steps

Concentrated aqueous ammonia solution (d 0.88) was added dropwise to a solution of ethyl 5,7-diethyl-2-oxo-1-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)biphenyl-4-yl)methyl]-1,2-dihydro-1,6-naphthyridine-3-carboxylate (600 mg) in a mixture of methanol (7 ml) and dichloromethane (1.5 ml) until the solution became cloudy. Dichloromethane (2 ml) was added to give a clear solution and the mixture was stirred for 3 days. Volatile material was then removed by evaporation to give 5,7-diethyl-2-oxo-1-[(2'-(2-triphenylmethyl-2H-tetrazol-5-yl)-biphenyl-4-yl)methyl]-1,2-dihydro-1,6-naphthyridine-3-carboxamide as a solid (500 mg), which was used without further purification or characterisation.

Provenance & Evidence