Potassium Carbonate → HCID 58843098, compound

Participants

Reaction Conditions

Reaction Steps

3-(1-Benzenesulfonyl-5-bromo-1H-indol-3-yl)-propionic acid methyl ester 89 (200 mg, 0.474 mmol) was combined with 3-thienyl boronic acid (67.0 mg, 0.52 mmol), triphenylphosphine (9.0 mg, 0.03 mmol), Pd(OAc)2 (4.0 mg, 0.015 mmol), K2CO3 (90 mg, 0.65 mmol), 1,2-Dimethoxyethane (DME, 4.0 mL) and H2O (0.4 mL) and was heated at 90° C. for 48 hours. The reaction was allowed to cool to room temperature and the solvent was evaporated. The resulting residue was dissolved in EtOAc and washed with brine. The organic layer was dried over MgSO4, filtered, and evaporated. The residue was purified with flash silica gel chromatography (20% EtOAc/Hexanes) to obtain the ester 91 as a white solid, (110 mg, M+1=426.1).

Provenance & Evidence