Lithium Chloride → benzyl(4S,5S)-5-{(2S)-2-[(tert-butoxycarbonyl)amino]-3-phenylpropyl}-2,2-dimethyl-4-[4-(6-methyl-3-pyridinyl)benzyl]-1,3-oxazolidine-3-carboxylate

HRID 1174255Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1174255
[C:1]([O:5][C:6]([NH:8][C@@H:9]([CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)[CH2:10][C@@H:11]1[O:15][C:14]([CH3:17])([CH3:16])[N:13]([C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])[C@H:12]1[CH2:28][C:29]1[CH:34]=[CH:33][C:32](OC(=O)C(F)(F)F)=[CH:31][CH:30]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Li+].[Cl-].[CH3:51][C:52]1[CH:57]=[CH:56][C:55]([Sn](CCCC)(CCCC)CCCC)=[CH:54][N:53]=1>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:5][C:6]([NH:8][C@@H:9]([CH2:42][C:43]1[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=1)[CH2:10][C@@H:11]1[O:15][C:14]([CH3:17])([CH3:16])[N:13]([C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])[C@H:12]1[CH2:28][C:29]1[CH:34]=[CH:33][C:32]([C:55]2[CH:54]=[N:53][C:52]([CH3:51])=[CH:57][CH:56]=2)=[CH:31][CH:30]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

6

Edukt 3

HCID 433294Lithium ChlorideHCID 183293632-Methyl-5-(tributylstannyl)pyridineHCID 67407042benzyl(4S,5S)-5-{(2S)-2-[(tert-butoxycarbonyl)amino]-3-phenylpropyl}-2,2-dimethyl-4-{4-[(trifluoroacetyl)oxy]benzyl}-1,3-oxazolidine-3-carboxylate

Produkt 1

HCID 67410176benzyl(4S,5S)-5-{(2S)-2-[(tert-butoxycarbonyl)amino]-3-phenylpropyl}-2,2-dimethyl-4-[4-(6-methyl-3-pyridinyl)benzyl]-1,3-oxazolidine-3-carboxylateAusbeute 84 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A solution containing the product from Example 23I (0.25 g, 0.354 mmol) in DMF (3.5 mL) was treated with LiCl (0.15 g, 3.54 mmol), dichlorobis(triphenylphosphine)palladium(II) (0.075 g, 0.107 mmol), and the product from Example 87A (0.40 mL, 1.67 mmol), heated at 100° C. for 16 hours, cooled and partitioned between ethyl acetate and water. The organic phase was washed with brine and dried over MgSO4, filtered and concentrated. The residue was chromatographed on silica gel eluting with 0-25% ethyl acetate in dichloromethane to give the title compound (0.193 g, 84% yield).

Aufarbeitung

  1. temperaturecooled
  2. custompartitioned between ethyl acetate and water
  3. washThe organic phase was washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was chromatographed on silica gel eluting with 0-25% ethyl acetate in dichloromethane

Quellen und Nachweise

ORD-Eintrag
ord-9d54ea15b191472682e18d0d7df2b278
Quelldatensatz
uspto-grants-2010_11
Patentnummer
US07834043B2

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