Sodium Carbonate → 5-bromo-3-(1-(3-fluorobenzyl)-3-methyl-1H-pyrazol-4-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine

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Reaction Steps

Using similar reaction conditions as described in step-i of example-1,5-bromo-3-iodo-1-tosyl-1H-pyrrolo[2,3-b]pyridine (Intermediate 1) (300 mg, 0.709 mmol) was coupled with 1-(3-fluorobenzyl)-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (intermediate 12) (270 mg, 0.851 mmol) using sodium carbonate (220 mg, 2.12 mmol) and Pd(PPh3)2Cl2 (25 mg, 0.035 mmol) in acetonitrile/water (10/2.5 ml) to afford 300 mg (78.5% yield) of the pure product after column purification using 40% ethyl acetate in hexane as eluent. MS: m/z=539.2 (M+1).

Provenance & Evidence