6-Aminonicotinic acid → (6-Aminopyridin-3-yl)(4-methylpiperazin-1-yl)methanone

Participants

Reaction Conditions

Reaction Steps

3.00 g 6-amino-nicotinic acid are dissolved in 30 ml of dimethylformamide and 4.05 g of N,N-carbonyldiimidazole are added. The mixture is briefly heated to 70° C. and then stirred for a further hour at ambient temperature. After this time 4.85 ml of N-methylpiperazine are added and the mixture is stirred for 12 hours at ambient temperature. The solvent is eliminated and the residue is purified through a silica gel column with methylene chloride/ethanol/ammonia 7:1:0.1 as eluant.

Provenance & Evidence