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

HRID 49046

반응식

HRID 49046 반응식
[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]

참가 물질

6

반응물 3

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

생성물 1

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

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

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.

후처리

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

출처 및 근거

ORD 기록
ord-1a8aa4affe9745f68a5c1786a24a5d89
출처 데이터셋
uspto-grants-2004_03
특허 번호
US06706709B2

연결된 노트

불러오는 중…