Potassium Carbonate → HCID 11441746, compound

Participants

Reaction Conditions

Reaction Steps

3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methylpyridin-2(1H)-one (0.5 g, 1.78 mmol) was dissolved in N,N-dimethylformamide (5 mL). 4-(Bromomethyl)phenylacetic acid (0.5 g, 2.14 mmol) was added followed by K2CO3 (0.3 g, 2.14 mmol). The reaction was heated to 80° C. and shaken for 16 hours, then heated to 100° C. and shaken for 16 hours more. The reaction mixture was partitioned between water and ethyl acetate and extracted with ethyl acetate (2×50 mL). The aqueous layer was acidified (pH 2) with 1N HCl and extracted with ethyl acetate (3×50 ml). The organic extracts were combined, washed with brine, dried over Na2SO4, and filtered. The filtrate was concentrated to an oil, and purified by chromatography (silica gel, hexane/ethyl acetate) followed by reversed phase chromatography (C18, 0.1% aqueous trifluoroacetic acid/acetonitrile) to yield a white solid (25 mg, 3%). 1H NMR (400 MHz, CDCl3) δ 7.40-7.38 (m, 3H), 7.25-7.20 (m, 7H), 6.05 (d, J=8.0 Hz, 1H), 5.21 (s, 2H); 5.13, (s, 2H); 3.62, (s, 2H). ES HRMS m/z 428.0510 (M+H C21H18BrNO4 requires 428.0492).

Provenance & Evidence