Sodium Carbonate → tert-butyl 5-(4-((tert-butoxycarbonyl)(1-(tert-butoxycarbonyl)piperidin-4-yl)amino)phenyl)-3-(1-(3-fluorobenzyl)-3,5-dimethyl-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridine-1-carboxylate

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Reaction Steps

Using similar reaction conditions as described in step-i of example-1, tert-butyl 5-(4-((tert-butoxycarbonyl)(1-(tert-butoxycarbonyl)piperidin-4-yl)amino)phenyl)-3-iodo-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (intermediate 66H) (150 mg, 0.20 mmol) was coupled with 1-(3-fluorobenzyl)-3,5-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (intermediate 16) (89 mg, 0.27 mmol) using Pd(dppf)Cl2 (8 mg, 0.01 mmol) and sodium carbonate (63 mg, 0.6 mmol) in toluene/ethanol/water (20/10/5 ml) to afford 40 mg (25.3% yield) of the titled compound after column purification using 35% ethyl acetate in hexane as eluent. MS: m/z=694.9 (M-Boc+1).

Provenance & Evidence