Methanol → (S)-(2-methyl-5-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carbonyl]-piperidin-3-yl}-phenoxy)-acetic acid

HRID 1269542Notes

Reaction equation

HRID 1269542 reaction equation
C([O:3][C:4](=[O:38])[CH2:5][O:6][C:7]1[CH:12]=[C:11]([CH:13]2[CH2:18][CH2:17][CH2:16][N:15]([C:19]([C:21]3[S:25][C:24]([C:26]4[CH:31]=[CH:30][C:29]([C:32]([F:35])([F:34])[F:33])=[CH:28][CH:27]=4)=[N:23][C:22]=3[CH3:36])=[O:20])[CH2:14]2)[CH:10]=[CH:9][C:8]=1[CH3:37])C.C(=O)([O-])[O-].[K+].[K+].CO>O>[CH3:37][C:8]1[CH:9]=[CH:10][C:11]([C@@H:13]2[CH2:18][CH2:17][CH2:16][N:15]([C:19]([C:21]3[S:25][C:24]([C:26]4[CH:27]=[CH:28][C:29]([C:32]([F:35])([F:33])[F:34])=[CH:30][CH:31]=4)=[N:23][C:22]=3[CH3:36])=[O:20])[CH2:14]2)=[CH:12][C:7]=1[O:6][CH2:5][C:4]([OH:38])=[O:3]

Participants

5

Reactant 3

HCID 887MethanolHCID 11430Potassium CarbonateHCID 68885433(2-Methyl-5-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carbonyl]-piperidin-3-yl}-phenoxy)-acetic acid ethyl ester

Product 1

HCID 10256053(S)-(2-methyl-5-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carbonyl]-piperidin-3-yl}-phenoxy)-acetic acidYield 96.4%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of (2-methyl-5-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carbonyl]-piperidin-3-yl}-phenoxy)-acetic acid ethyl ester (146 mg, 0.26 mmol), potassium carbonate (71 mg, 0.52 mmol), methanol (10 mL) and water (2 mL) was heated at reflux for 3 h, cooled to room temperature and concentrated under reduced pressure. The resulting residue was taken up in water (50 mL), acidified with 1N aqueous hydrochloric acid and extracted with ethyl acetate (2×50 mL). The combined organic extracts were washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, filtered, concentrated under reduced pressure to yield 130 mg (94%) of (S)-(2-methyl-5-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazole-5-carbonyl]-piperidin-3-yl}-phenoxy)-acetic acid as a white solid.

Workup

  1. temperaturewas heated
  2. temperatureat reflux for 3 h
  3. concentrationconcentrated under reduced pressure
  4. extractionextracted with ethyl acetate (2×50 mL)
  5. washThe combined organic extracts were washed with saturated aqueous sodium chloride
  6. dry with materialdried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-dd79bfb738844093ac0e4fba40cafe6b
Source dataset
uspto-grants-2007_04
Patent number
US07199243B2

Reaction notes

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