Hydrochloric Acid → 3-[1-[3-Ethoxy-5-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-phenyl-3-pyrrolyl]propionic acid

HRID 350266

Reaction equation

HRID 350266 reaction equation
[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([CH:26]=[C:27]([O:29][CH2:30][C:31]2[N:32]=[C:33]([C:37]3[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=3)[O:34][C:35]=2[CH3:36])[CH:28]=1)[CH2:7][N:8]1[CH:12]=[C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:10]([CH2:19][CH2:20][C:21]([O:23]CC)=[O:22])=[CH:9]1)[CH3:2].[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([CH:26]=[C:27]([O:29][CH2:30][C:31]2[N:32]=[C:33]([C:37]3[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=3)[O:34][C:35]=2[CH3:36])[CH:28]=1)[CH2:7][N:8]1[CH:12]=[C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:10]([CH2:19][CH2:20][C:21]([OH:23])=[O:22])=[CH:9]1)[CH3:2]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 69422944Ethyl 3-[1-[3-ethoxy-5-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-phenyl-3-pyrrolyl]propionate

Product 1

HCID 694227763-[1-[3-Ethoxy-5-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-phenyl-3-pyrrolyl]propionic acidYield 74.4%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

After a mixture of ethyl 3-[1-[3-ethoxy-5-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-phenyl-3-pyrrolyl]propionate (621 mg), 1N aqueous sodium hydroxide solution (2.5 ml), tetrahydrofuran (5 ml) and ethanol (5 ml) was stirred at room temperature for 2 hours, 1 N hydrochloric acid (2.5 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-[1-[3-ethoxy-5-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-phenyl-3-pyrrolyl]propionic acid (439 mg, yield: 74%). This was recrystallized from ethanol-hexane. Melting point: 126–127° 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-99744f31e7e14e148db2645f8dc05867
Source dataset
uspto-grants-2007_02
Patent number
US07179823B1

Linked notes

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