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1,2-Dichloroethane → 4-((S)-3-tert-Butoxycarbonylamino-2-{[5-(3,3-dimethyl-2-oxo-butoxy)-1-phenyl-1H-pyrazole-3-carbonyl]-amino}-propionyl)-piperazine-1-carboxylic acid ethyl ester

HRID 1908637
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1908637
[CH3:1][C:2]([CH3:22])([CH3:21])[C:3](=[O:20])[CH2:4][O:5][C:6]1[N:10]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[N:9]=[C:8]([C:17]([OH:19])=O)[CH:7]=1.[CH2:23]([O:25][C:26]([N:28]1[CH2:33][CH2:32][N:31]([C:34](=[O:46])[C@@H:35]([NH2:45])[CH2:36][NH:37][C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:30][CH2:29]1)=[O:27])[CH3:24].C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl>CN(C=O)C.O>[CH2:23]([O:25][C:26]([N:28]1[CH2:29][CH2:30][N:31]([C:34](=[O:46])[C@@H:35]([NH:45][C:17]([C:8]2[CH:7]=[C:6]([O:5][CH2:4][C:3](=[O:20])[C:2]([CH3:1])([CH3:22])[CH3:21])[N:10]([C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=3)[N:9]=2)=[O:19])[CH2:36][NH:37][C:38]([O:40][C:41]([CH3:43])([CH3:42])[CH3:44])=[O:39])[CH2:32][CH2:33]1)=[O:27])[CH3:24]
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Komponenten

7

Edukt 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 668548144-((S)-2-Amino-3-tert-butoxycarbonylamino-propionyl)-piperazine-1-carboxylic acid ethyl esterHCID 669199535-(3,3-Dimethyl-2-oxo-butoxy)-1-phenyl-1H-pyrazole-3-carboxylic acid

Produkt 1

HCID 66920210
4-((S)-3-tert-Butoxycarbonylamino-2-{[5-(3,3-dimethyl-2-oxo-butoxy)-1-phenyl-1H-pyrazole-3-carbonyl]-amino}-propionyl)-piperazine-1-carboxylic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 1.7 g of 5-(3,3-Dimethyl-2-oxo-butoxy)-1-phenyl-1H-pyrazole-3-carboxylic acid and 2.0 g of 4-((S)-2-Amino-3-tert-butoxycarbonylamino-propionyl)-piperazine-1-carboxylic acid ethyl ester in 10 ml of DMF, 0.9 g of HOBT and 1.1 g of EDC was added and the reaction mixture was stirred for 2 h at RT. Then, the reaction mixture was diluted with water and extracted with DCM. The organic phase was dried over MgSO4 and the solvents were removed under reduced pressure. The crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate. The fractions containing the product were combined and the solvent evaporated under reduced pressure. Yield: 3.8 g.

Aufarbeitung

  1. extractionextracted with DCM
  2. dry with materialThe organic phase was dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate
  5. additionThe fractions containing the product
  6. customthe solvent evaporated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-ea53d095899d413e9f75b7dad8a35641
Quelldatensatz
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08598179B2

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