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Hydrochloric Acid → [1-[6-(5-methyl-2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-3-phenyl-1H-pyrazol-4-yl]acetic acid

HRID 350299
Notes
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Reaction equation

HRID 350299 reaction equation
[CH3:1][C:2]1[S:6][C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([CH2:21][N:22]2[CH:26]=[C:25]([CH2:27][C:28]([O:30]CC)=[O:29])[C:24]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)=[N:23]2)=[CH:17][CH:16]=1.[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH3:1][C:2]1[S:6][C:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[N:4][C:3]=1[CH2:13][O:14][C:15]1[N:20]=[CH:19][C:18]([CH2:21][N:22]2[CH:26]=[C:25]([CH2:27][C:28]([OH:30])=[O:29])[C:24]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)=[N:23]2)=[CH:17][CH:16]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86760434ethyl [1-[6-(5-methyl-2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-3-phenyl-1H-pyrazol-4-yl]acetate

Product 1

HCID 69420186[1-[6-(5-methyl-2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-3-phenyl-1H-pyrazol-4-yl]acetic acidYield 89.4%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

After a mixture of ethyl [1-[6-(5-methyl-2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-3-phenyl-1H-pyrazol-4-yl]acetate (475 mg), 1N sodium hydroxide solution (2 ml), tetrahydrofuran (4 ml), and ethanol (4 ml) was stirred at room temperature for 2 hours, 1N hydrochloric acid (2 ml) was added to the mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4), and concentrated. The resulting colorless crystals were collected by filtration to obtain [1-[6-(5-methyl-2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-3-phenyl-1H-pyrazol-4-yl]acetic acid (402 mg, yield: 89%). This was recrystallized from ethanol-hexane. Melting point: 140–141° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated aqueous sodium chloride solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. filtrationThe resulting colorless crystals were collected by filtration

Sources & evidence

ORD record
ord-980909a5bd8a47e2bb041eafbe87f074
Source dataset
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07179823B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes