Sodium Carbonate → 1-(1-Methylethyl)-3-{4-[(3-methyl-3H-imidazo[4,5-b]pyridin-2-yl)oxy]phenyl}-1H-pyrazolo[4,3-b]pyridine

Participants

Reaction Steps

A mixture of 3-methyl-2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-3H-imidazo[4,5-b]pyridine (215 mg), 3-bromo-1-(1-methylethyl)-1H-pyrazolo[4,3-b]pyridine (147 mg), Pd(PPh3)4 (21 mg) and Na2CO3 (227 mg) in DME (5 mL) and water (1 mL) was refluxed overnight under Ar atmosphere. The reaction mixture was poured into water and extracted with AcOEt. The extract was washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (AcOEt/hexane) and recrystallized from AcOEt/hexane to give the title compound (225 mg).

Provenance & Evidence