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Citric Acid → N-methyl-N-{2-[5-(2-oxobut-3-en-1-yl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}thiophene-2-sulfonamide

HRID 504861
ノート
印刷プレビュー

反応式

HRID 504861 の反応式
CON(C)[C:4](=[O:30])[CH2:5][CH:6]1[S:10][C:9]([C:11]2[NH:12][C:13]3[C:18]([CH:19]=2)=[CH:17][CH:16]=[CH:15][C:14]=3[N:20]([CH3:29])[S:21]([C:24]2[S:25][CH:26]=[CH:27][CH:28]=2)(=[O:23])=[O:22])=[N:8][CH2:7]1.O1CC[CH2:34][CH2:33]1.C([Mg]Br)=C.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>O1CCCC1>[CH3:29][N:20]([C:14]1[CH:15]=[CH:16][CH:17]=[C:18]2[C:13]=1[NH:12][C:11]([C:9]1[S:10][CH:6]([CH2:5][C:4](=[O:30])[CH:33]=[CH2:34])[CH2:7][N:8]=1)=[CH:19]2)[S:21]([C:24]1[S:25][CH:26]=[CH:27][CH:28]=1)(=[O:22])=[O:23]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 311Citric AcidHCID 59135983N-methoxy-N-methyl-2-(2-{7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetamideHCID 178420667HCID 178420667、化合物2 回

生成物 1

HCID 59136147N-methyl-N-{2-[5-(2-oxobut-3-en-1-yl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}thiophene-2-sulfonamide収率 38%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

実験手順

N-Methoxy-N-methyl-2-(2-{7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetamide (589 mg) was dissolved in absolute tetrahydrofuran (20 mL), and 1M vinylmagnesium bromide tetrahydrofuran solution (3.7 mL) was added under ice-cooling. The mixture was stirred for 5 hr under ice-cooling, 1M vinylmagnesium bromide tetrahydrofuran solution (2.0 mL) was added again, and the mixture was further stirred under ice-cooling for 2 hr. The reaction solution was acidified with aqueous citric acid solution, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate), and the obtained pale-yellow crystals were washed with ethyl acetate-hexane to give the title compound (210 mg, yield: 38%) as pale-yellow crystals. MS: 446 (MH+). melting point 157-158° C.

後処理

  1. temperaturecooling
  2. temperaturecooling
  3. stirringthe mixture was further stirred under ice-
  4. temperaturecooling for 2 hr
  5. extractionextracted with ethyl acetate
  6. washThe organic layer was washed with water and saturated brine
  7. dry with materialdried over anhydrous magnesium sulfate
  8. concentrationconcentrated under reduced pressure
  9. washthe obtained pale-yellow crystals were washed with ethyl acetate-hexane

出典と根拠

ORDレコード
ord-51dfda59d4aa4e6a9a7a328eba6515fe
出典データセット
uspto-grants-2010_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07777047B2

反応ノート

読み込み中…

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