Cesium carbonate → 5-(2-oxo-2-pyrrolidin-1-yl-ethoxy)-1H-indole-2-carboxylic acid ethyl ester

HRID 1790896

反応式

HRID 1790896 の反応式
[CH2:1]([O:3][C:4]([C:6]1[NH:7][C:8]2[C:13]([CH:14]=1)=[CH:12][C:11]([OH:15])=[CH:10][CH:9]=2)=[O:5])[CH3:2].Br[CH2:17][C:18]([N:20]1[CH2:24][CH2:23][CH2:22][CH2:21]1)=[O:19].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O.C(OCC)(=O)C>[CH2:1]([O:3][C:4]([C:6]1[NH:7][C:8]2[C:13]([CH:14]=1)=[CH:12][C:11]([O:15][CH2:17][C:18](=[O:19])[N:20]1[CH2:24][CH2:23][CH2:22][CH2:21]1)=[CH:10][CH:9]=2)=[O:5])[CH3:2]

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 90677Ethyl 5-hydroxy-1H-indole-2-carboxylateHCID 111061881-(Bromoacetyl)pyrrolidine

生成物 1

HCID 695874665-(2-oxo-2-pyrrolidin-1-yl-ethoxy)-1H-indole-2-carboxylic acid ethyl ester収率 25.3%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A mixture of 5-hydroxy-1H-indole-2-carboxylic acid ethyl ester (2 g, 10 mmol), 2-bromo-1-pyrrolidin-1-yl-ethanone (3 g, 20 mmol) and cesium carbonate (19.5 g, 60 mmol) in dimethylformamide (16 mL) was stirred at room temperature for 24 hours. The reaction was diluted with ethyl acetate (150 mL), washed with water (5×50 mL) and brine, dried and concentrated. The residue was recrystallized from ethyl acetate and hexane to give 0.8 g (25%) 5-(2-oxo-2-pyrrolidin-1-yl-ethoxy)-1H-indole-2-carboxylic acid ethyl ester as a brown solid.

後処理

  1. washwashed with water (5×50 mL) and brine
  2. customdried
  3. concentrationconcentrated
  4. customThe residue was recrystallized from ethyl acetate and hexane

出典と根拠

ORDレコード
ord-bd3f5973d8154800a333fcc7c94b4117
出典データセット
uspto-grants-2006_07
特許番号
US07071332B2

関連ノート

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