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Hydrochloric Acid → 3-[1-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyl]-3-phenyl-1H-pyrazol-4-yl]propionic acid

HRID 350103
ノート
印刷プレビュー

反応式

HRID 350103 の反応式
[CH3:1][C:2]1[O:6][C:5]([C:7]2[S:8][CH:9]=[CH:10][CH:11]=2)=[N:4][C:3]=1[CH2:12][O:13][C:14]1[CH:37]=[CH:36][C:17]([CH2:18][N:19]2[CH:23]=[C:22]([CH2:24][CH2:25][C:26]([O:28]C)=[O:27])[C:21]([C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)=[N:20]2)=[CH:16][CH:15]=1.O.[OH-].[Li+].O1CCCC1.Cl>CO.O>[CH3:1][C:2]1[O:6][C:5]([C:7]2[S:8][CH:9]=[CH:10][CH:11]=2)=[N:4][C:3]=1[CH2:12][O:13][C:14]1[CH:37]=[CH:36][C:17]([CH2:18][N:19]2[CH:23]=[C:22]([CH2:24][CH2:25][C:26]([OH:28])=[O:27])[C:21]([C:30]3[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=3)=[N:20]2)=[CH:16][CH:15]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 168937Lithium hydroxide, monohydrateHCID 69423000methyl 3-[1-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyl]-3-phenyl-1H-pyrazol-4-yl]propionate

生成物 1

HCID 694227073-[1-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyl]-3-phenyl-1H-pyrazol-4-yl]propionic acid収率 95%

試薬・触媒・溶媒

2
HCID 887Methanol溶媒HCID 962Water溶媒

実験手順

A mixture of methyl 3-[1-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyl]-3-phenyl-1H-pyrazol-4-yl]propionate (633 mg), lithium hydroxide monohydrate (155 mg), tetrahydrofuran (6 ml), water (4 ml) and methanol (4 ml) was stirred at room temperature for 2 hours, and 1N hydrochloric acid (3.7 ml) was added to the mixture, which was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4), then concentrated. The colorless crystals obtained were collected by filtration to yield 3-[1-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyl]-3-phenyl-1H-pyrazol-4-yl]propionic acid (581 mg, yield: 95%). This was recrystallized from ethyl acetate-hexane. Melting point: 159–160° C.

後処理

  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 colorless crystals obtained
  6. filtrationwere collected by filtration

出典と根拠

ORDレコード
ord-546f1d3b0e9a48a8a8e8dc779ec2d815
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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