Sodium Hydroxide → HCID 68899827, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of {2-[(6-chloroquinolin-2-yl)sulfonyl]phenyl}methanol (Step 2, 157 mg, 0.47 mmol), 2,4-difluorobenzeneboronic acid (173 mg, 1.09 mmol), palladium acetate (6 mg, 0.023 mmol), 2-dicyclohexylphosphino-2′-methylbiphenyl (18 mg, 0.05 mmol) and potassium phosphate (313 mg, 1.47 mmol) was degassed. Toluene (2 mL) was added and the mixture degassed again then heated to 90° C. under nitrogen for 1 hour. The cooled reaction mixture was poured into 1M sodium hydroxide solution and extracted with ethyl acetate (x2). The combined organic layers were washed with brine, dried over MgSO4 and evaporated. The residue was purified by flash column chromatography on silica, eluting with 5-10% ethyl acetate/isohexane, followed by recrystallisation from ethyl acetate/isohexane to give the title compound (33 mg, 17%). 1H NMR (500 MHz, CDCl3) δ 8.46 (1H, d, J=8.5 Hz), 8.27 (1H, d, J=8.5 Hz), 8.20 (1H, d, J=7.9 Hz), 8.16 (1H, d, J=8.9 Hz), 8.02 (1H, s), 7.94 (1H, d, J=8.8 Hz), 7.65-7.59 (2H, m), 7.53-7.47 (2H, m), 7.04-6.96 (2H, m), 5.12 (2H, d, J=7.0 Hz), 4.18 (1H, t, J=7.1 Hz); m/z (ES+) 412 [MH+].

Provenance & Evidence