2-Amino-5-bromopyridine → HCID 59408778, compound

Participants

Reaction Steps

2-chloro-1-methylpyridinium iodide (2.37 g, 18.6 mmol) was added to a suspension of 6-(6-bromonicotinamido)nicotinic acid 4 (2 g, 6.21 mmol) and 2-amino-5-bromopyridine 5 (1.07 g, 6.21 mmol) in THF (100 ml), followed by DIPEA (2.4 g, 18.6 mmol). The reaction mixture was stirred for 4 days at RT. The suspension was filtered off and washed with water (25 ml). The filtrate was concentrated, diluted in chloroform, washed with water and brine, and then dried over Na2SO4. The product precipitated during evaporation and was dried under vacuum to give 6-bromo-N-(5-(5-bromopyridin-2-ylcarbamoyl)pyridin-2-yl)nicotinamide 6 as a yellow solid (400 mg, 14%). Mp. 245-247° C.

Provenance & Evidence