Pyridine → 1-(6-Chloronaphthalen-2-ylsulfonyl)-4-[6-(4-methyl-hexahydro-1,4-diazepin-1-yl)pyridazin-3-ylcarbonyl]-piperazine Hemihydrate

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-(6-chloronaphthalene-2-sulfonyl)-4-(6-chloropyridazin-3-ylcarbonyl)piperazine (0.2 g, 0.443 mmol), 1-methylhexahydro-1,4-diazepine (0.166 mL, 1.33 mmol) and pyridine (0.11 mL, 1.33 mmol) in DMSO (5 mL) was heated in a sealed tube at 80° C. overnight. The reaction mixture was cooled to room temperature, diluted with ethyl acetate (500 mL), washed with saturated sodium bicarbonate (200 mL), water (2×150 mL) and brine, and dried over sodium sulfate. After filtration and evaporation of the solvent, the residue was purified by flash chromatography over silica, eluting with 5–7% methanol/methylene chloride, to afford the title compound (0.1 g, 43%).

Provenance & Evidence