Water → HCID 9930360, compound

Participants

Reaction Steps

To a solution of 3-bromo-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-6-carbonitrile (0.24 g 0.76 mmol) in DMF (20 ml) was added 4-methanesulfonylphenylboronic acid (0.202 g 1.1 mmol), ground potassium phosphate (0.45 g 20 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.03 g) and the mixture heated to 90° for 6 h under nitrogen. The cooled mixture was poured into water (200 ml) and extracted with ethyl acetate (3×40 ml). The combined organic phases were washed with water (50 ml), brine (50 ml) and dried. Removal of solvent gave a solid which was purified by biotage chromatography. Elution with cyclohexane:ethyl acetate (4:1) gave the title compound as a white solid (0.019 g 6%). MH+: 392; NMR: (CDCl3) δ 3.14 (3H, s) 7.09 (2H, t) 7.30 (1H, dd) 7.50-7.56 (4H, m) 7.62 (1H, dd) 8.00 (2H, d) 8.9 (1H, s).

Provenance & Evidence