methyl (S)-2-(benzyl-{2-(3,5-difluoro-phenyl)-2-[hydroxyimino]-ethyl}-amino)-3-cycloheptyl-propionate → (3R)-3-(cycloheptylmethyl)-6-(3,5-difluorophenyl)piperazin-2-one
Reaktionsgleichung
C([N:8]([CH2:22][C:23]([C:26]1[CH:31]=[C:30]([F:32])[CH:29]=[C:28]([F:33])[CH:27]=1)=[N:24]O)[C@H:9]([CH2:14][CH:15]1[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]1)[C:10](OC)=[O:11])C1C=CC=CC=1.C(N(CC(C1C=C(F)C=C(F)C=1)=NO)[C@@H](CC1CCCCCC1)C(OC)=O)C1C=CC=CC=1.[H][H]>[Pd].CO>[CH:15]1([CH2:14][C@H:9]2[NH:8][CH2:22][CH:23]([C:26]3[CH:31]=[C:30]([F:32])[CH:29]=[C:28]([F:33])[CH:27]=3)[NH:24][C:10]2=[O:11])[CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]1Komponenten
6
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
Under a hydrogen atmosphere 5.5 g (12.0 mmol) methyl (R)-2-(benzyl-{2-(3,5-difluoro-phenyl)-2-[hydroxyimino]-ethyl}-amino)-3-cycloheptyl-propionate (this compound may be prepared analogously to the synthesis of methyl (S)-2-(benzyl-{2-(3,5-difluoro-phenyl)-2-[hydroxyimino]-ethyl}-amino)-3-cycloheptyl-propionate described herein using the corresponding (R)-configured starting component) and 0.70 g palladium on charcoal (10%) were hydrogenated in 30 ml of methanol for 3 days at 50° C. to 60° C. and 3 bar hydrogen pressure. After elimination of the catalyst the filtrate was concentrated by rotary evaporation. Purification was carried out by flash chromatography.
Aufarbeitung
- concentrationAfter elimination of the catalyst the filtrate was concentrated by rotary evaporation
- customPurification
Quellen und Nachweise
- ORD-Eintrag
- ord-c5f5cf3a4e9f477a80283d4dcbac531a
- Quelldatensatz
- uspto-grants-2014_07
- Patentnummer
- US08765763B2
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