Sodium Hydroxide → HCID 22261233, compound

Participants

Reaction Steps

A solution of 2-(4-{2-[2-(4-cyclohexyloxy-phenyl)-5-methyl-oxazol-4-yl]-ethoxy}-phenoxy)-2-methyl-propionic acid ethyl ester (0.339 g, 0.667 mmol) in ethanol (40 mL) was treated with 5 N NaOH (0.8 mL) and the reaction heated to reflux for 1 h. The reaction mixture was cooled and the solvent removed in vacuo. The resultant oil was acidified with 1 N HCl and extracted with EtOAc and water. The organic layer was dried (MgSO4) and the solvent removed in vacuo to afford 0.304 g (95%) of 2-(4-{2-[2-(4-cyclohexyloxy-phenyl)-5-methyl-oxazol-4-yl]-ethoxy}-phenoxy)-2-methyl-propionic acid. 1H NMR (500 MHz, CDCl3) δ 7.94-7.85 (m, 2H), 6.89-6.73 (m, 4H), 6.71 (d, 2H, J=9.28 Hz), 4.30-4.23 (m, 1H), 4.14-4.05 (m, 2H), 2.95-2.85 (m, 2H), 2.29 (s, 3H), 1.98-1.85 (m, 2H), 1.80-1.75 (m, 2H), 1.58-1.40 (m, 8H), 1.38-1.20 (m, 4H); HRMS (ES+) m/z exact mass calcd for C28H34NO6 480.2386, found 480.2381 The following compound was prepared using tetrahydro-2H-pyran-4-ol:

Provenance & Evidence