Potassium Hydroxide → 7-{methyl[(1-methyl-1H-imidazol-2-yl)sulfonyl]amino}-1H-indole-2-carboxylic acid

HRID 1994796ノート

反応式

HRID 1994796 の反応式
[CH3:1][N:2]([S:17]([C:20]1[N:21]([CH3:25])[CH:22]=[CH:23][N:24]=1)(=[O:19])=[O:18])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]([O:14]CC)=[O:13])=[CH:8]2.[OH-].[K+]>O1CCCC1.CO>[CH3:1][N:2]([S:17]([C:20]1[N:21]([CH3:25])[CH:22]=[CH:23][N:24]=1)(=[O:19])=[O:18])[C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:11]=1[NH:10][C:9]([C:12]([OH:14])=[O:13])=[CH:8]2

参加物

5

反応物 2

HCID 14797Potassium HydroxideHCID 59135753HCID 59135753、化合物

生成物 1

HCID 591356537-{methyl[(1-methyl-1H-imidazol-2-yl)sulfonyl]amino}-1H-indole-2-carboxylic acid収率 100.1%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Ethyl 7-{methyl[(1-methyl-1H-imidazol-2-yl)sulfonyl]amino}-1H-indole-2-carboxylate (2.87 g) was dissolved in a mixed solvent of tetrahydrofuran (30 mL)-methanol (20 mL). Aqueous potassium hydroxide solution (prepared by dissolving potassium hydroxide (2.0 g) in water (20 mL)) was added to this solution, and the mixture was stirred at room temperature for 16 hr, and concentrated under reduced pressure to evaporate methanol. The obtained residue was acidified with aqueous citric acid solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to give the title compound (2.65 g, yield: 100%) as colorless crystals. MS: 335 (MH+). melting point: 241-242° C.

後処理

  1. concentrationconcentrated under reduced pressure
  2. customto evaporate methanol
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-36421ba375b247299e204ff2caeaf51c
出典データセット
uspto-grants-2010_01
特許番号
US07652133B2

反応ノート

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