Water → HCID 11237832, Verbindung

HRID 1454109Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1454109
C1(C)C=CC(S(O)(=O)=O)=CC=1.[NH2:12][C@@H:13]([CH2:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[C:31]([O:32][CH3:33])=[CH:30][C:29]([CH2:34][O:35][CH2:36][CH3:37])=[CH:28][C:27]=2[O:38][CH3:39])=[CH:22][CH:21]=1)[C:14]([O:16][CH2:17][CH3:18])=[O:15].C(=O)([O-])O.[Na+].O.[F:46][C:47]1[CH:55]=[CH:54][CH:53]=[C:52]([F:56])[C:48]=1[C:49](Cl)=[O:50]>C(OCC)(=O)C>[F:46][C:47]1[CH:55]=[CH:54][CH:53]=[C:52]([F:56])[C:48]=1[C:49]([NH:12][C@@H:13]([CH2:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]2[C:27]([O:38][CH3:39])=[CH:28][C:29]([CH2:34][O:35][CH2:36][CH3:37])=[CH:30][C:31]=2[O:32][CH3:33])=[CH:22][CH:21]=1)[C:14]([O:16][CH2:17][CH3:18])=[O:15])=[O:50]

Komponenten

6

Edukt 4

HCID 962WaterHCID 874382,6-Difluorobenzoyl chlorideHCID 516892Sodium BicarbonateHCID 86599825HCID 86599825, Verbindung

Produkt 1

HCID 11237832HCID 11237832, VerbindungAusbeute 96,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a mixture of ethyl (αS)-α-amino-4′-ethoxymethyl-2′,6′-dimethoxy(1,1′-biphenyl)-4-propionate p-toluenesulfonate (29.0 g), sodium hydrogen carbonate (15.2 g), water (290 ml) and ethyl acetate (290 ml) was added dropwise 2,6-difluorobenzoyl chloride (9.6 g) at 15° C. or below and the mixture was stirred for 30 minutes at the same temperature. The ethyl acetate layer was washed with saturated aqueous NaCl solution and dried over magnesium sulfate. The solvent was removed in vacuo. The residue was recrystallized from isopropanol-water to yield ethyl (αS)-α-[(2,6-difluorobenzoyl)amino]-4′-ethoxymethyl-2′,6′-dimethoxy(1,1′-biphenyl)-4-propionate (26.4 g).

Aufarbeitung

  1. washThe ethyl acetate layer was washed with saturated aqueous NaCl solution
  2. dry with materialdried over magnesium sulfate
  3. customThe solvent was removed in vacuo
  4. customThe residue was recrystallized from isopropanol-water

Quellen und Nachweise

ORD-Eintrag
ord-fe7d8de7d2604f94ac1732c76aadd525
Quelldatensatz
uspto-grants-2009_01
Patentnummer
US07476758B2

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