Ethanol → HCID 178464722, compound

Participants

Reaction Steps

The mixture of (R)-4-(6-(cis-4-phenyl-cyclohexyloxy)naphthalen-2-yl)-4-methyloxazolidin-2-one (160 mg, 0.00040 mol) and lithium hydroxide (100 mg, 0.0044 mol) in ethanol (4 mL, 0.08 mol) and water (0.9 mL, 0.05 mol) was heated to reflux overnight. LCMS showed reaction complete. The solvent was removed under vacuum and the residue was partitioned between water and CH2Cl2. The aqueous layer was extensively extracted with CH2Cl2. The combined organic phase was dried over Na2SO4. The concentrated residue was taken up into DCM and subjected to chromatographic purification with CH2Cl2/MeOH (10:90 to 80:20) to give the product. A final purification on Gilson HPLC 0.1% TFA-ACN/H2O to gave the product as a white solid (62.0 mg, 41% yield). LCMS 359.33 ([M-NH2]+, 100%). 1H NMR (400 MHz, CD3OD) δ ppm 1.71 (brd, J=13.1 Hz, 2 H), 1.78 (s, 3 H), 1.83 (brd, J=14.7 Hz, 2 H), 1.98 (dd, J=13.7, 11.1 Hz, 2 H), 2.24 (d, J=12.6 Hz, 2 H), 2.67 (dd, J=11.6, 11.5 Hz, 1H), 3.82 (d, J=11.7 Hz, 1H), 3.92 (d, J=11.7 Hz, 1H), 4.84 (brs, 1H), 7.16 (m, 1H), 7.27-7.32 (m, 6H), 7.52 (d, J=8.7 Hz, 1H), 7.85 (m, 3H).

Provenance & Evidence