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Hydrochloric Acid → 1-(2-toluoylmethyl)-2-oxo-3-tert-butoxycarbonylamino-5-(2-pyridylcarbonyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine

HRID 1979388
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1979388
[O:1]=[C:2]1[NH:8][C:7]2[CH:9]=[C:10]([CH3:13])[CH:11]=[CH:12][C:6]=2[N:5]([C:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=2)=[O:15])[CH2:4][CH:3]1[NH:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24].Br[CH2:31][C:32]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=1[CH3:40])=[O:33].[OH-].[Na+].Cl>C1(C)C=CC=CC=1.[Br-].C([N+](CCCC)(CCCC)CCCC)CCC>[C:35]1([CH3:40])[C:34]([C:32]([CH2:31][N:8]2[C:7]3[CH:9]=[C:10]([CH3:13])[CH:11]=[CH:12][C:6]=3[N:5]([C:14]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=3)=[O:15])[CH2:4][CH:3]([NH:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[C:2]2=[O:1])=[O:33])=[CH:39][CH:38]=[CH:37][CH:36]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 124306762-Bromo-2'-methylacetophenoneHCID 212017912-oxo-3-tert-butoxycarbonylamino-5-(2-pyridylcarbonyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine

Produkt 1

HCID 212016931-(2-toluoylmethyl)-2-oxo-3-tert-butoxycarbonylamino-5-(2-pyridylcarbonyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine
Ausbeute 53,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 74236Tetrabutylammonium BromideKatalysatorHCID 1140TolueneLösungsmittel

Versuchsvorschrift

2-Oxo-3-tert-butoxycarbonylamino-5-(2-pyridylcarbonyl)-8-methyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine (1.74 g) was suspended in toluene (24 ml), 2-bromo-2′-methylacetophenone (1.12 g), 1N aqueous sodium hydroxide (12 ml) and tetra n-butylammonium bromide (20 mg) were added, the mixture was stirred for one day at room temperature. The reaction mixture was weakly acidified with 1N hydrochloric acid, extracted with methylene chloride. The organic layer was washed with saturated aqueous sodium bicarbonate, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography(chloroform:ethyl acetate=9:1), to thereby obtain 1.25 g of the titled compound.

Aufarbeitung

  1. extractionextracted with methylene chloride
  2. washThe organic layer was washed with saturated aqueous sodium bicarbonate
  3. dry with materialdried over anhydrous sodium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography(chloroform:ethyl acetate=9:1)

Quellen und Nachweise

ORD-Eintrag
ord-021aa7cfaa194648af45457bfdf5bd1a
Quelldatensatz
uspto-grants-2001_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06239131B1

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