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Hydrochloric Acid → 3-[3-phenyl-1-[4-(5-phenyl-3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionic acid

HRID 350280
Notes
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Reaction equation

HRID 350280 reaction equation
[C:1]1([C:7]2[C:11]([CH2:12][CH2:13][C:14]([O:16]CC)=[O:15])=[CH:10][N:9]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]4[CH:29]=[N:30][CH:31]=[C:32]([C:34]5[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=5)[CH:33]=4)=[CH:22][CH:21]=3)[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH-].[Na+].O1CCCC1.Cl>C(O)C>[C:1]1([C:7]2[C:11]([CH2:12][CH2:13][C:14]([OH:16])=[O:15])=[CH:10][N:9]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]4[CH:29]=[N:30][CH:31]=[C:32]([C:34]5[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=5)[CH:33]=4)=[CH:22][CH:21]=3)[N:8]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 23025101ethyl 3-[3-phenyl-1-[4-(5-phenyl-3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate

Product 1

HCID 694217473-[3-phenyl-1-[4-(5-phenyl-3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionic acidYield 82%

Reagents, catalysts & solvents

1
HCID 702EthanolSolvent

Procedure

After a mixture of ethyl 3-[3-phenyl-1-[4-(5-phenyl-3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionate (980 mg), 1N aqueous sodium hydroxide solution (4 ml), tetrahydrofuran (10 ml) and ethanol (10 ml) was stirred at room temperature for 2 hours, 1 N hydrochloric acid (4 ml) was added to the mixture, and then 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 3-[3-phenyl-1-[4-(5-phenyl-3-pyridylmethoxy)benzyl]-1H-pyrazol-4-yl]propionic acid (760 mg, yield: 82%). This was recrystallized from acetone-hexane. Melting point: 161–162° 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-f6d0894c5a1e42a1aa15b11bd9d99c2e
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