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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
ノート
印刷プレビュー

反応式

HRID 350258 の反応式
[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]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

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

生成物 1

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

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

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.

後処理

  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

出典と根拠

ORDレコード
ord-f227b5d8ad864c13b7d04940d1d0e102
出典データセット
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07179823B1

反応ノート

読み込み中…

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