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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → tert-Butyl ({3-[6-(4-Oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propanoyl}amino)acetate

HRID 748416
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HRID 748416 반응식
[O:1]=[C:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[S:5][C:4]([C:12]2[N:17]=[C:16]([CH2:18][CH2:19][C:20]([OH:22])=O)[CH:15]=[CH:14][CH:13]=2)=[N:3]1.[C:23]([O:27][C:28](=[O:31])[CH2:29][NH2:30])([CH3:26])([CH3:25])[CH3:24].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1>CN(C)C=O>[O:1]=[C:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[S:5][C:4]([C:12]2[N:17]=[C:16]([CH2:18][CH2:19][C:20]([NH:30][CH2:29][C:28]([O:27][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:31])=[O:22])[CH:15]=[CH:14][CH:13]=2)=[N:3]1
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참가 물질

6

반응물 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 151417Glycine tert-butyl esterHCID 99013333-[6-(4-Oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propionic acid

생성물 1

HCID 59750322tert-Butyl ({3-[6-(4-Oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propanoyl}amino)acetate수율 99.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

3-[6-(4-oxo-4H-1,3-benzothiazin-2-yl)-2-pyridyl]propionic acid (0.20 g, 0.64 mmol) as dissolved in N,N-dimethylformamide (3 ml), and glycine tert-butyl ester (0.11 g, 0.67 mmol), WSC (0.25 g, 1.3 mmol) and HOBt (0.18 g, 1.3 mmol) were added successively thereto. The reaction mixture was stirred at room temperature for 17 hrs, concentrated under reduced pressure and combined with ethyl acetate and water. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was subjected to a silica gel (15 g) column chromatography. The fractions eluted with hexane-ethylacetate (1:1, v/v) were collected and concentrated to give the titled compound (0.27 g, 99%) as white crystals.

후처리

  1. concentrationconcentrated under reduced pressure
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated
  5. washThe fractions eluted with hexane-ethylacetate (1:1
  6. customv/v) were collected
  7. concentrationconcentrated

출처 및 근거

ORD 기록
ord-ee4b1ac53b6344dcad2890c9202b0b4e
출처 데이터셋
uspto-grants-2008_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07399759B2

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