Potassium Carbonate → N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide

Participants

Reaction Conditions

Reaction Steps

7-Bromo-N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (prepared as in Example 127, Step A; 50 mg, 0.10 mmol) in DMF (4 mL) was added tert-butyl 5,6-dihydroimidazo[1,2-a]pyrazine-7(8H)-carboxylate (68 mg, 0.31 mmol), Pd(PPh3)4 (12 mg, 0.01 mmol), palladium diacetate (2.3 mg, 0.010 mmol) and K2CO3 (42 mg, 0.31 mmol). The reaction mixture was purged with argon and the reaction vial was sealed and the mixture was heated to 140° C. for 3 hours. The mixture was cooled to ambient temperature and diluted with DCM (20 mL). The solution was washed with H2O, dried (Na2SO4) and concentrated under reduced pressure. The residue was purified by silica gel chromatography (DCM/MeOH/NH4OH 10:1:0.1) to provide the final product (14 mg). MS (ES+APCI) m/z=532 (M+H).

Provenance & Evidence