Sodium Carbonate → tert-butyl 4-(2-fluoro-4-(3-(1-(3-fluorobenzyl)-3-methyl-1H-pyrazol-4-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridin-5-yl)phenyl)-5,6-dihydropyridine-1(2H)-carboxylate

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Reaction Steps

Using similar reaction conditions as described in step-i of example-1, 5-bromo-3-(1-(3-fluorobenzyl)-3-methyl-1H-pyrazol-4-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (300 mg, 0.55 mmol) was coupled with tert-butyl 4-(2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-5,6-dihydropyridine-1(2H)-carboxylate (intermediate 70) (270 mg, 0.66 mmol) using sodium carbonate (175 mg, 1.65 mmol) and Pd(PPh3)2Cl2 (20 mg, 0.027 mmol) in DME/water (10/2.5 ml) to afford 250 mg (61.2% yield) of the pure product after column purification using 50% ethyl acetate in hexane as eluent. MS: m/z=736.4 (M+1).

Provenance & Evidence