Sodium Bicarbonate → 3-amino-6-[4-chloro-3-(5-fluoro-2-methoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyrazine-2-carboxylic acid dimethylamide

Participants

Reaction Conditions

Reaction Steps

42 mg (93 μmol) of 4-chloro-3-(5-fluoro-2-methoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridine-5-boronic acid, 5 mg (6 μmol) of (1,1′-bis(diphenylphosphino)ferrocene palladium(II)-dichloride dichloromethane adduct and 41 mg (0.14 mmol) of 3-amino-6-iodo-pyrazine-2-carboxylic acid dimethylamide were dissolved in a mixture of 1 mL of acetonitrile and 1 mL of toluene. 2 mL of a saturated aqueous solution of sodium bicarbonate was added and the resulting mixture heated in closed vial to 110° C. for 20 h. The aqueous layer was removed and the organic phase evaporated. The residue was purified by flash chromatography on silica gel using a gradient of 10% v/v of methanol in ethyl acetate and hexanes to afford 25 mg (44 μmol, 47%) of 3-amino-6-[4-chloro-3-(5-fluoro-2-methoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-pyrazine-2-carboxylic acid dimethylamide.

Provenance & Evidence