Sodium Hydroxide → HCID 12966844, compound

HRID 2229022Notes

Reaction equation

HRID 2229022 reaction equation
C([O:3][C:4](=[O:44])[C:5]([O:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][CH2:17][C:18]2[N:19]=[C:20]([C:24]3[CH:29]=[CH:28][C:27]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)=[CH:26][CH:25]=3)[O:21][C:22]=2[CH3:23])=[CH:11][C:10]=1[CH2:36][CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)([CH3:7])[CH3:6])C.[OH-].[Na+]>C(O)C>[C:27]1([C:30]2[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=2)[CH:26]=[CH:25][C:24]([C:20]2[O:21][C:22]([CH3:23])=[C:18]([CH2:17][CH2:16][O:15][C:12]3[CH:13]=[CH:14][C:9]([O:8][C:5]([CH3:7])([CH3:6])[C:4]([OH:44])=[O:3])=[C:10]([CH2:36][CH2:37][C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=4)[CH:11]=3)[N:19]=2)=[CH:29][CH:28]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 12966843HCID 12966843, compound

Product 1

HCID 12966844HCID 12966844, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
55 °C

Procedure

A solution of 2-{4-[2-(2-biphenyl-4-yl-5-methyloxazol-4-yl)ethoxy]-2-phenethylphenoxy}-2-methylpropionic acid ethyl ester (0.54 mmol) in ethanol (10 mL) was treated with 2.5 N aqueous NaOH (0.4 mL), and heated at 55° C. for 2 h. The reaction was cooled to ambient temperature and concentrated down to near dryness. The residue was then diluted with ethyl acetate (40 mL) and water (20 mL) and acidified to pH 1 with 1N aqueous HCl. The organic layer was washed with brine (20 mL), dried (Na2SO4) and concentrated in vacuo to give 2-{4-[2-(2-biphenyl-4-yl-5-methyloxazol-4-yl)ethoxy]-2-phenethylphenoxy}-2-methylpropionic acid. 1H NMR (400 MHz, CDCl3) δ8.06 (d, J=1.5 Hz, 2H), 8.05 (d, J=2.0 Hz, 2H), 7.69 (d, J=2.0 Hz, 2H), 7.67-7.36 (m, 3H), 7.28-7.15 (m, 5H), 6.77-6.73 (m, 2H), 6.62 (dd, J=8.8, 2.9 Hz, 1H), 4.16 (t, J=6.4 Hz, 2H), 3.01 (t, J=6.4 Hz, 2H), 2.86 (s, 4H, 2.41 (s, 3H), 1.55 (s, 6H), MS (ES) m/e 562 M+1).

Workup

  1. temperatureThe reaction was cooled to ambient temperature
  2. concentrationconcentrated down to near dryness
  3. additionThe residue was then diluted with ethyl acetate (40 mL) and water (20 mL)
  4. washThe organic layer was washed with brine (20 mL)
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-1f258b6a10904bb787822580a39842a2
Source dataset
uspto-grants-2002_07
Patent number
US06417212B1

Reaction notes

Loading…