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Ethyl Acetate → 3-methyl-5-[3-(2-morpholin-4-yl-ethylamino)-propyl]-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester

HRID 2191421
ノート
印刷プレビュー

反応式

HRID 2191421 の反応式
[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:26])=[C:8]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[NH:9][C:10]=1[CH2:11][CH2:12][CH2:13]OS(C)(=O)=O)=[O:5])[CH3:2].[N:27]1([CH2:33][CH2:34][NH2:35])[CH2:32][CH2:31][O:30][CH2:29][CH2:28]1.C(OCC)(=O)C>O.[Cl-].[Na+].O>[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:26])=[C:8]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[NH:9][C:10]=1[CH2:11][CH2:12][CH2:13][NH:35][CH2:34][CH2:33][N:27]1[CH2:32][CH2:31][O:30][CH2:29][CH2:28]1)=[O:5])[CH3:2]
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 8857Ethyl AcetateHCID 4082852-MorpholinoethylamineHCID 592500502-(tert-butyl) 4-ethyl 3-methyl-5-(3-((methylsulfonyl)oxy)propyl)-1H-pyrrole-2,4-dicarboxylate

生成物 1

HCID 592500493-methyl-5-[3-(2-morpholin-4-yl-ethylamino)-propyl]-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester収率 87%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
HCID 57417360Sodium chloride; water溶媒

実験手順

5-(3-Methanesulfonyloxy-propyl)-3-methyl-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester 1 g (5.812 g, 15 mmol) obtained from step 6 of Example 1 and 2-morpholin-4-yl-ethylamine (10.725 g, 82.5 mmol) was dissolved in water bath at 30° C. and stirred for 5.5 hours at room temperature. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was added with ethyl acetate (100 ml) and saturated brine (100 ml), stirred for 5 minutes, and separated into layers. The organic phase was washed with saturated brine (100 ml×4), dried over anhydrous magnesium sulfate, filtered to remove the drying agent and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain 3-methyl-5-[3-(2-morpholin-4-yl-ethylamino)-propyl]-1H-pyrrole-2,4-dicarboxylic acid 2-tert-butyl ester 4-ethyl ester 10a (2.238 g, yield 87%) as a light yellow oil.

後処理

  1. stirringstirred for 5 minutes
  2. customseparated into layers
  3. washThe organic phase was washed with saturated brine (100 ml×4)
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customto remove the drying agent
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-b95612580ac64cdb902319dc97cac204
出典データセット
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08329682B2

反応ノート

読み込み中…

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