Sodium Hydroxide → (2-(3-Methoxy-propyl)-4-{methyl-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethyl]-amino}-phenoxy)-acetic acid
Reaction equation
C([O:3][C:4](=[O:37])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([N:13]([CH3:31])[CH2:14][C:15]2[S:19][C:18]([C:20]3[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][CH:21]=3)=[N:17][C:16]=2[CH3:30])=[CH:9][C:8]=1[CH2:32][CH2:33][CH2:34][O:35][CH3:36])C.[OH-].[Na+]>C1COCC1.CCO>[CH3:36][O:35][CH2:34][CH2:33][CH2:32][C:8]1[CH:9]=[C:10]([N:13]([CH3:31])[CH2:14][C:15]2[S:19][C:18]([C:20]3[CH:21]=[CH:22][C:23]([C:26]([F:28])([F:29])[F:27])=[CH:24][CH:25]=3)=[N:17][C:16]=2[CH3:30])[CH:11]=[CH:12][C:7]=1[O:6][CH2:5][C:4]([OH:37])=[O:3]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
0.280 g (0.52 mmol) of the above prepared (2-(3-methoxy-propyl)-4-{methyl-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethyl]-amino}-phenoxy)-acetic acid ethyl ester was dissolved in 3.3 ml of THF/EtOH=1/1, treated with 1.56 ml (3 eq.) of 1N NaOH, and kept at ambient temperature for 0.5 h. The reaction mixture was then poured onto crashed ice/HCl dil., extracted twice with EtOAc, the organic layer washed with water and brine, dried over sodium sulfate, and evaporated to dryness. Crystallization from hexane/EtOAc afforded finally 0.209 g of the title compound as off-white crystals of mp. 142-143° C., MS: 507.5 (M-H)−.
Workup
- additionThe reaction mixture was then poured
- extractionextracted twice with EtOAc
- washthe organic layer washed with water and brine
- dry with materialdried over sodium sulfate
- customevaporated to dryness
- customCrystallization from hexane/EtOAc
Sources & evidence
- ORD record
- ord-faefa4b1870a4f169d3fc246c4e39ba6
- Source dataset
- uspto-grants-2008_03
- Patent number
- US07345067B2
Reaction notes
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