Ammonia → 2-[N-(5-bromo-2-benzyloxybenzyl)-N-ethylamino]pyridine-5-carboxamide

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Reaction Steps

A mixture of 2-[N-(5-bromo-2-benzyloxybenzyl)-N-ethylamino]pyridine-5-carboxylic acid (1.4 g) [table 1a, compound 2] and 1,1-carbonyldiimidazole (0.62 g) were heated in DMF at 55° C. for 3 hours. The mixture was cooled to ambient temperature, aqueous ammonia (20 ml) was added and the mixture was stirred for 18 hours. The solvent was evaporated and the residue purified by MPLC eluting with methanol: dichloromethane (5:95) to give 2-[N-(5-bromo-2-benzyloxybenzyl)-N-ethylamino]pyridine-5-carboxamide (671 mg).

Provenance & Evidence