反应详情

温度

80 °C

(R)-4-[6-(4-tert-Butyl-cyclohexyloxy)-5-(4-trifluoromethoxy-phenyl)-naphthalen-2-yl]-4-methyl-oxazolidin-2-one (0.2041 g, 0.0003768 mol) was dissolved in ethanol (4.00 mL, 0.0685 mol) in a capped 40 mL EPA vial equipped with a magnetic stir bar. 4.2 M lithium hydroxide, monohydrate in water (2.00 mL, 0.00840 mol) was added and the mixture was stirred overnight at 80° C. HPLC analysis showed that the reaction was complete. The reaction mixture was concentrated to dryness under reduced pressure. The product was partitioned between water and methylene chloride. The combined organic phase was dried over MgSO4, filtered, concentrated and purified by flash chromatography [0-50% of 2M NH3 solution in MeOH (10% in methylene chloride) and methylene chloride to give the title compound in 69% yield. MS: m/z=499.23 [M−NH2]+. 1H NMR (MeOD) δ: 7.93-7.96 (m, 1H), 7.91 (d, J=9.3 Hz, 1H), 7.47-7.52 (m, 1H), 7.38-7.45 (m, 6H), 4.06-4.16 (m, 1H), 3.72 (d, J=10.8 Hz, 1H), 3.67 (d, J=10.8 Hz, 1H), 1.99-2.07 (m, 2H), 1.76-1.84 (m, 2H), 1.51 (s, 3H), 0.91-1.24 (m, 5H), 0.86 (s, 9H)

1. customvial equipped with a magnetic stir bar
2. concentrationThe reaction mixture was concentrated to dryness under reduced pressure
3. customThe product was partitioned between water and methylene chloride
4. dry with materialThe combined organic phase was dried over MgSO4
5. filtrationfiltered
6. concentrationconcentrated
7. custompurified by flash chromatography [0-50% of 2M NH3 solution in MeOH (10% in methylene chloride) and methylene chloride