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Citric Acid → {2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid

HRID 1960524
ノート
印刷プレビュー

反応式

HRID 1960524 の反応式
C([O:3][C:4](=[O:35])[CH2:5][CH:6]1[S:10][C:9]([C:11]2[NH:12][C:13]3[C:18]([CH:19]=2)=[CH:17][C:16]([O:20][C:21]([F:24])([F:23])[F:22])=[CH:15][C:14]=3[N:25]([CH3:34])[S:26]([C:29]2[S:30][CH:31]=[CH:32][CH:33]=2)(=[O:28])=[O:27])=[N:8][CH2:7]1)C.[OH-].[Na+].O1CCCC1.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>C(O)C>[CH3:34][N:25]([S:26]([C:29]1[S:30][CH:31]=[CH:32][CH:33]=1)(=[O:28])=[O:27])[C:14]1[CH:15]=[C:16]([O:20][C:21]([F:22])([F:24])[F:23])[CH:17]=[C:18]2[C:13]=1[NH:12][C:11]([C:9]1[S:10][CH:6]([CH2:5][C:4]([OH:35])=[O:3])[CH2:7][N:8]=1)=[CH:19]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 311Citric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 57476345ethyl {2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetate

生成物 1

HCID 57476346{2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid収率 94.9%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

A mixture of ethyl{2-[7-[methyl(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetate (300 mg), 1N aqueous sodium hydroxide solution (5 mL), tetrahydrofuran (5 mL) and ethanol (5 mL) was stirred at room temperature for 15 hr. The reaction mixture was acidified with aqueous citric acid solution, and extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4), and concentrated. The residue was crystallized from ethyl acetate-hexane to give the title compound (270 mg, yield 93%) as pale-yellow crystals. The crystals were purified by preparative HPLC, and recrystallized from ethyl acetate-hexane to give pale-yellow prism crystals. melting point 225-227° C.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe residue was crystallized from ethyl acetate-hexane

出典と根拠

ORDレコード
ord-c3136be7fa224dea9aaad9657f0f338f
出典データセット
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08410087B2

反応ノート

読み込み中…

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