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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
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HRID 2191421 반응식
[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]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 8857Ethyl AcetateHCID 4082852-MorpholinoethylamineHCID 592500502-(tert-butyl) 4-ethyl 3-methyl-5-(3-((methylsulfonyl)oxy)propyl)-1H-pyrrole-2,4-dicarboxylate

생성물 1

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

시약·촉매·용매 2

HCID 962
Water
용매
HCID 57417360Sodium chloride; water용매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-b95612580ac64cdb902319dc97cac204
출처 데이터셋
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08329682B2

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