2-Amino-5-nitropyridine → 5-Acetyl-2-ethyl-4-[(5-nitropyridin-2-yl)amino]-6-phenylpyridazin-3(2H)-one

Participants

Reaction Steps

To a solution of 80 mg (0.278 mmol) of 5-acetyl-2-ethyl-4-nitro-6-phenylpyridazin-3(2H)-one (Dal Piaz, V et al, J. Med. Chem. 1997, 40, 1417) in 4 ml of ethanol, 77 mg (0.556 mmol) of 2-amino-5-nitropyridine was added. The resulting mixture was irradiated in microwave oven for seven hours at 120° C. The final product was collected by filtration and washed with diethylether to yield the title compound (36 mg, 34.3% yield).

Provenance & Evidence