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Hydrochloric Acid → 3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-ylacetic acid

HRID 350258
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HRID 350258 반응식
[CH2:1]([O:3][C:4]1[C:8]([CH2:9][C:10]([O:12]CC)=[O:11])=[CH:7][N:6]([CH2:15][C:16]2[CH:17]=[N:18][C:19]([O:22][CH2:23][C:24]3[N:25]=[C:26]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[O:27][C:28]=3[CH3:29])=[CH:20][CH:21]=2)[N:5]=1)[CH3:2].[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH2:1]([O:3][C:4]1[C:8]([CH2:9][C:10]([OH:12])=[O:11])=[CH:7][N:6]([CH2:15][C:16]2[CH:17]=[N:18][C:19]([O:22][CH2:23][C:24]3[N:25]=[C:26]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[O:27][C:28]=3[CH3:29])=[CH:20][CH:21]=2)[N:5]=1)[CH3:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 69423980ethyl 3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-ylacetate

생성물 1

HCID 694217973-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-ylacetic acid수율 91%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

After a mixture of ethyl 3-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-ylacetate (605 mg), 1N aqueous sodium hydroxide solution (3 ml), tetrahydrofuran (6 ml) and ethanol (6 ml) was stirred at room temperature for 2 hours, 1 N hydrochloric acid (3 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-ethoxy-1-[6-(5-methyl-2-phenyl-4-oxazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-ylacetic acid (518 mg, yield: 91%). This was recrystallized from ethanol-hexane. Melting point: 126–127° C.

후처리

  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

출처 및 근거

ORD 기록
ord-f227b5d8ad864c13b7d04940d1d0e102
출처 데이터셋
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07179823B1

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