Sodium Carbonate → 5-bromo-3-(1-phenethyl-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) (400 mg, 0.838 mmol) was coupled with 1-phenethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (Intermediate 59) (250 mg, 0.838 mmol) using sodium carbonate (266 mg, 2.515 mmol) and Pd(PPh3)2Cl2 (30 mg, 0.041 mmol) in toluene/ethanol/water (20/10/5 ml) to afford 191 mg (44% yield) of the pure product after column purification using 20% ethyl acetate in hexane as eluent. MS: m/z=521.1 (M+1).

Provenance & Evidence