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Triethylamine → 2-Benzyloxycarbonylamino-3-((3-methyl-4-oxo-1-phenyl-1,3,8,-triazaspiro[4.5]decane-8-carbonyl)amino)propionic acid methyl ester

HRID 896275
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 896275
[CH3:1][O:2][C:3](=[O:28])[CH:4]([NH2:27])[CH2:5][NH:6][C:7]([N:9]1[CH2:26][CH2:25][C:12]2([N:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:15][N:14]([CH3:23])[C:13]2=[O:24])[CH2:11][CH2:10]1)=[O:8].C(N(CC)CC)C.[CH2:36]([O:43][C:44](Cl)=[O:45])[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.C(=O)([O-])O.[Na+]>ClCCl>[CH3:1][O:2][C:3](=[O:28])[CH:4]([NH:27][C:44]([O:43][CH2:36][C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)=[O:45])[CH2:5][NH:6][C:7]([N:9]1[CH2:10][CH2:11][C:12]2([N:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:15][N:14]([CH3:23])[C:13]2=[O:24])[CH2:25][CH2:26]1)=[O:8]
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Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 10387Benzyl chloroformateHCID 516892Sodium BicarbonateHCID 695629412-Amino-3-((3-methyl-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carbonyl)amino)propionic acid methyl ester

Produkt 1

HCID 208149142-Benzyloxycarbonylamino-3-((3-methyl-4-oxo-1-phenyl-1,3,8,-triazaspiro[4.5]decane-8-carbonyl)amino)propionic acid methyl ester
Ausbeute 73,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 288 mg (0.74 mmol) of 2-amino-3-((3-methyl-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carbonyl)amino)propionic acid methyl ester in 4 ml of dichloromethane, 0.21 ml (1.48 mmol) of triethylamine and 0.1 ml (0.89 mmol) of benzyloxycarbonyl chloride were added, and the resulting mixture was stirred at room temperature for one day. To the reaction mixture, saturated aqueous sodium hydrogen carbonate solution was added, and the resulting mixture was extracted with chloroform. Organic phases were combined, washed with 10% aqueous citric acid solution and with saturated saline, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel column chromatography (chloroform:methanol=60:1) to obtain 284 mg of 2-benzyloxycarbonylamino-3-((3-methyl-4-oxo-1-phenyl-1,3,8,-triazaspiro[4.5]decane-8-carbonyl)amino)propionic acid methyl ester (yield: 73%)

Aufarbeitung

  1. extractionthe resulting mixture was extracted with chloroform
  2. washwashed with 10% aqueous citric acid solution and with saturated saline
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel column chromatography (chloroform:methanol=60:1)

Quellen und Nachweise

ORD-Eintrag
ord-059b711f3940411aae222912875f4c65
Quelldatensatz
uspto-grants-2005_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06919349B2

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