Water → 3-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-N-methyl-benzamide

Participants

Reaction Steps

To a mixture of 3-(3-Bromo-imidazo-[1,2-b]-pyridazin-7-yl)-N-methyl-benzamide (Intermediate A) (1 eq, 0.353 mmol, 117 mg) and 2-chloropyridine-4-boronic acid (1.2 eq, 0.424 mmol, 66.7 mg) in DME (3 ml) are added water (1 ml) and Na2CO3 (2 eq, 0.707 mmol, 87.6 mg). PdCl2(PPh3)2 (0.1 eq, 0.035 mmol, 24.8 mg) is then added and the reaction mixture is heated using microwave radiation at 120° C. for 10 min. At the completion of this time the solvent is removed in vacuo and the reaction mixture is purified by flash column chromatography eluting with 9:1 DCM/MeOH to yield 3-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-N-methyl-benzamide as a yellow solid; [M+H]+=364

Provenance & Evidence