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

HRID 504853
ノート
印刷プレビュー

反応式

HRID 504853 の反応式
[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:14])=[O:13])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21]1[S:22][CH:23]([CH2:26][C:27]([O:29]CC)=[O:28])[CH2:24][N:25]=1)[NH:6]2.[OH-].[K+].C(O)(=O)CC(CC(O)=O)(C(O)=O)O>O1CCCC1.CO>[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:14])=[O:13])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21]1[S:22][CH:23]([CH2:26][C:27]([OH:29])=[O:28])[CH2:24][N:25]=1)[NH:6]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 3

HCID 311Citric AcidHCID 14797Potassium HydroxideHCID 59136158ethyl(2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate

生成物 1

HCID 59136105(2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid収率 107.3%

試薬・触媒・溶媒 2

HCID 887
Methanol
溶媒
HCID 8028Tetrahydrofuran溶媒

実験手順

Ethyl (2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate (0.99 g) was dissolved in a mixed solvent of tetrahydrofuran (12 mL)-methanol (12 mL), and the mixture was ice-cooled. Aqueous potassium hydroxide solution (prepared by dissolving potassium hydroxide (0.35 g) in water (5 mL)) was added to this solution, and the mixture was stirred from under ice-cooling to room temperature for 15 hr. The reaction solution was acidified with aqueous citric acid solution, and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained pale-yellow crystals were washed with ethyl acetate-hexane to give the title compound (1.00 g, yield: 95%) as pale-yellow crystals. MS: 450 (MH+). melting point 269-270° C.

後処理

  1. temperaturecooled
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. washThe obtained pale-yellow crystals were washed with ethyl acetate-hexane

出典と根拠

ORDレコード
ord-89559870cdf64d6488ddf83d4a48f9ff
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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