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Sodium Hydroxide → 1-{2-[3-(2-{3-Chloro-4-[(1-methylethyl)oxy]phenyl}-1,3-thiazol-5-yl)-2-ethylphenyl]ethyl}-3-azetidinecarboxylic acid

HRID 1942746
Notes
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Reaction equation

HRID 1942746 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[S:13][C:14]([C:17]3[C:18]([CH2:33][CH3:34])=[C:19]([CH2:23][CH2:24][N:25]4[CH2:28][CH:27]([C:29]([O:31]C)=[O:30])[CH2:26]4)[CH:20]=[CH:21][CH:22]=3)=[CH:15][N:16]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:11])[CH3:10].[OH-].[Na+]>C(O)(C)C.O>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[S:13][C:14]([C:17]3[C:18]([CH2:33][CH3:34])=[C:19]([CH2:23][CH2:24][N:25]4[CH2:26][CH:27]([C:29]([OH:31])=[O:30])[CH2:28]4)[CH:20]=[CH:21][CH:22]=3)=[CH:15][N:16]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:11])[CH3:10]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 58494068Methyl 1-{2-[3-(2-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,3-thiazol-5-yl)-2-ethylphenyl]ethyl}-3-azetidinecarboxylate

Product 1

HCID 545771571-{2-[3-(2-{3-Chloro-4-[(1-methylethyl)oxy]phenyl}-1,3-thiazol-5-yl)-2-ethylphenyl]ethyl}-3-azetidinecarboxylic acidYield 10.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×
HCID 3776IsopropanolSolvent

Procedure

To a solution of methyl 1-{2-[3-(2-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,3-thiazol-5-yl)-2-ethylphenyl]ethyl}-3-azetidinecarboxylate (D90) (120 mg) in isopropanol (40 mL) and water (10 mL) stirred under nitrogen at room temperature was added a solution of NaOH (9.62 mg) in water in one charge. The reaction mixture was stirred at room temperature overnight. Isopropanol was removed in vacuo. The residue was dissolved in water and acidified with 1N HCl to pH=5. The solvent was removed in vacuo, the residue was dissolved in THF, and filtered. The filtrate was purified by Mass Directed AutoPrep to give 1-{2-[3-(2-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,3-thiazol-5-yl)-2-ethylphenyl]ethyl}-3-azetidinecarboxylic acid (E41) (12 mg) as a TFA salt (white solid). δH (DMSO-d6, 400 MHz): 1.07 (3H, t), 1.34 (6H, d), 2.70 (2H, m), 2.87 (2H, m), 3.59 (3H, m), 4.29 (4H, m), 4.79 (1H, m), 7.30 (4H, m), 7.82 (1H, s), 7.87 (1H, dd), 7.99 (1H, d), 10.06 (1H, br s), 13.15 (1H, br s). δF (DMSO-d6, 376 MHz): −73.6. MS (ES): C26H29ClN2O3S requires 484. found 485.2 (M+H+).

Workup

  1. additioncharge
  2. customIsopropanol was removed in vacuo
  3. dissolutionThe residue was dissolved in water
  4. customThe solvent was removed in vacuo
  5. dissolutionthe residue was dissolved in THF
  6. filtrationfiltered
  7. customThe filtrate was purified by Mass Directed AutoPrep

Sources & evidence

ORD record
ord-8d86ffd886554e4290e0429b1d7b1995
Source dataset
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08389508B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes