Hydrochloric Acid → HCID 69422688, compound

HRID 350127Notes

Reaction equation

HRID 350127 reaction equation
[CH3:1][C:2]1[O: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[CH:36]=[CH:35][C:18]([CH2:19][N:20]2[CH:24]=[C:23]([CH2:25][CH2:26][C:27]([O:29]CC)=[O:28])[C:22]([CH2:32][CH2:33][CH3:34])=[N:21]2)=[CH:17][CH:16]=1.[OH-].[Na+].C(O)C.Cl>O1CCCC1>[CH3:1][C:2]1[O: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[CH:36]=[CH:35][C:18]([CH2:19][N:20]2[CH:24]=[C:23]([CH2:25][CH2:26][C:27]([OH:29])=[O:28])[C:22]([CH2:32][CH2:33][CH3:34])=[N:21]2)=[CH:17][CH:16]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 702EthanolHCID 14798Sodium HydroxideHCID 69421710HCID 69421710, compound

Product 1

HCID 69422688HCID 69422688, compoundYield 83.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of ethyl 3-[1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-3-propyl-1H-pyrazol-4-yl]propionate (610 mg), 1N aqueous sodium hydroxide solution (2.6 ml), ethanol (3 ml), and tetrahydrofuran (3 ml) was stirred at room temperature for 2 hours. The reaction mixture was acidified with dilute hydrochloric acid, which was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4), then concentrated. The crystals obtained were collected by filtration to yield 3-[1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-3-propyl-1H-pyrazol-4-yl]propionic acid (480 mg, yield: 80%). This was recrystallized from ethyl acetate-hexane. Melting point: 153–154° C.

Workup

  1. extractionwas 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. customThe crystals obtained
  6. filtrationwere collected by filtration

Sources & evidence

ORD record
ord-c8713853ebe944338acc3264071ad994
Source dataset
uspto-grants-2007_02
Patent number
US07179823B1

Reaction notes

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