反应详情

To a 0° C. suspension in DMF (2 mL) of sodium hydride (90% in mineral oil, 38 mg, 0.95 mmol) was added a solution of 3-hydroxypyridine (95 mg, 1.0 mmol) in DMF (2 mL) dropwise and the mixture was stirred for 0.5 hours. A solution of (4-bromomethyl-2-phenylbenzoyl)methionine methyl ester (218 mg, 0.5 mmol) in DMF (1 mL) was added and the reaction mixture was stirred for 18 hours. The reaction mixture was poured into aqueous 2N sodium hydroxide and the mixture was extracted with ethyl acetate (3×). The combined organic extracts were dried, filtered and concentrated in vacuo. Chromatography on silica gel (60% ethyl acetate-hexanes, then ethyl acetate) gave [4-(3-pyridyloxymethyl)-2-phenylbenzoyl]methionine methyl ester (58 mg). 1H NMR (300 MHz, DMSO-d6) δ 12.66 (bs, 1H), 8.58 (d, 1H), 8.38 (d, 1H), 8.17 (dd, 1H), 7.30-7.56 (m, 10H), 5.29 (s, 2H), 4.29 (ddd, 1H), 2.23 (m, 2H), 1.98 (s, 3H), 1.84 (m, 2H). MS (CI NH3) m/e 454 (M+NH4)+, 437 (M+H)+. Anal calcd for C24H24N2O4S (+0.41 H2O): C, 64.94; H, 5.64; N, 6.31. Found: C, 64.94; H, 5.35; N,S 6.14.

1. stirringthe reaction mixture was stirred for 18 hours
2. extractionthe mixture was extracted with ethyl acetate (3×)
3. customThe combined organic extracts were dried
4. filtrationfiltered
5. concentrationconcentrated in vacuo