反应详情

To a 25 mL round-bottomed flask was added methyl 2′-chloro-4-(2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl)biphenyl-2-carboxylate (43.8 mg, 0.079 mmol), methanol (1 mL), THF (1 mL) and 8 equivalents of a 1M solution of sodium hydroxide (0.63 mL, 0.63 mmol). The mixture was stirred at room temperature for 48 hours. The crude product was diluted with 20 mL of ethyl acetate, made acidic with 0.5M HCl, extracted, washed with brine, dried over sodium sulfate, filtered and evaporated to dryness giving 47.2 mgs (96% yield) of 2′-chloro-4-(2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl)-5-methylbiphenyl-2-carboxylic acid as yellow solid. The LC/MS data was obtained on a Shimadzu analytical LC/Micromass Platform LC (ESI+) at 220 nm using the following set of conditions: Phenomenex Luna 3 μm C18, 2×50 mm column, with a gradient of 0-100% B (B=90% HPLC grade acetonitrile/0.1% trifluoroacetic acid/10% HPLC grade water), (A=90% HPLC grade water/0.1% trifluoroacetic acid/10% HPLC grade acetonitrile), in 4 minutes with a 1 minute hold at a rate of 0.8 mL/minute. LCMS m/z 500.2 (M+H), Rt=3.426 min., 90% purity.

1. extractionextracted
2. washwashed with brine
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. customevaporated to dryness