Hydrochloric Acid → (5R)-5-{2-[4-(cyclopropylsulfonyl)phenyl]-2-[6-methoxy-5-(1H-pyrazol-4-yl)pyridin-2-yl]ethyl}pyrrolidin-2-one

HRID 70694Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 70694
Cl.[CH:2]1([S:5]([C:8]2[CH:13]=[CH:12][C:11](/[C:14](/[C:22]3[CH:27]=[CH:26][C:25]([C:28]4[CH:29]=[N:30][NH:31][CH:32]=4)=[C:24]([O:33][CH3:34])[N:23]=3)=[CH:15]\[C@@H:16]3[NH:20][C:19](=[O:21])[CH2:18][CH2:17]3)=[CH:10][CH:9]=2)(=[O:7])=[O:6])[CH2:4][CH2:3]1.[H][H]>CO.[Pd]>[CH:2]1([S:5]([C:8]2[CH:9]=[CH:10][C:11]([CH:14]([C:22]3[CH:27]=[CH:26][C:25]([C:28]4[CH:29]=[N:30][NH:31][CH:32]=4)=[C:24]([O:33][CH3:34])[N:23]=3)[CH2:15][C@@H:16]3[NH:20][C:19](=[O:21])[CH2:18][CH2:17]3)=[CH:12][CH:13]=2)(=[O:6])=[O:7])[CH2:4][CH2:3]1

Komponenten

6

Versuchsvorschrift

10% palladium-activated carbon (175 mg) and concentrated hydrochloric acid (1 mL) were added to a solution of (5R)-5-{(E)-2-[4-(cyclopropylsulfonyl)phenyl]-2-[6-methoxy-5-(1H-pyrazol-4-yl)pyridin-2-yl]ethenyl}pyrrolidin-2-one obtained in Example 4-376(1) (175 mg) in methanol (3 mL) in a hydrogen gas stream, and the mixture was stirred at room temperature for five hours. The reaction solution was filtered through celite, and then the solvent was evaporated under reduced pressure. Saturated aqueous sodium bicarbonate was added to the residue, followed by extraction with chloroform. The solvent was evaporated from the organic layer under reduced pressure to give a crude product of (5R)-5-{2-[4-(cyclopropylsulfonyl)phenyl]-2-[6-methoxy-5-(1H-pyrazol-4-yl)pyridin-2-yl]ethyl}pyrrolidin-2-one as a colorless amorphous (129 mg, 73%).

Aufarbeitung

  1. filtrationThe reaction solution was filtered through celite
  2. customthe solvent was evaporated under reduced pressure
  3. additionSaturated aqueous sodium bicarbonate was added to the residue
  4. extractionfollowed by extraction with chloroform
  5. customThe solvent was evaporated from the organic layer under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-90343137b00742e0a4ac3ebcaf3ee417
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08822503B2

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