Sodium bis(trimethylsilyl)amide → (4S,5S)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one

HRID 1028537

Reaktionsgleichung

Reaktionsgleichung von HRID 1028537
[F:1][C:2]([F:21])([F:20])[C:3]1[CH:4]=[C:5]([C@@H:13]2[O:17][C:16](=[O:18])[NH:15][C@H:14]2[CH3:19])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.C[Si]([N-][Si](C)(C)C)(C)C.[Na+].[CH3:32][O:33][C:34]1[C:35]([C:43]2[CH:48]=[CH:47][C:46]([C:49]([F:52])([F:51])[F:50])=[CH:45][C:44]=2[CH2:53]Br)=[CH:36][C:37]([CH:40]([CH3:42])[CH3:41])=[CH:38][CH:39]=1>C1COCC1.CC(N(C)C)=O>[F:21][C:2]([F:1])([F:20])[C:3]1[CH:4]=[C:5]([C@@H:13]2[O:17][C:16](=[O:18])[N:15]([CH2:53][C:44]3[CH:45]=[C:46]([C:49]([F:50])([F:51])[F:52])[CH:47]=[CH:48][C:43]=3[C:35]3[CH:36]=[C:37]([CH:40]([CH3:42])[CH3:41])[CH:38]=[CH:39][C:34]=3[O:33][CH3:32])[C@H:14]2[CH3:19])[CH:6]=[C:7]([C:9]([F:10])([F:11])[F:12])[CH:8]=1

Komponenten

6

Edukt 3

HCID 2724254Sodium bis(trimethylsilyl)amideHCID 533636432-(Bromomethyl)-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenylHCID 86603412(4S,5S)-5-[3,5-bis(trifluoromethyl)phenyl]-4-methyl-1,3-oxazolidin-2-one

Produkt 1

HCID 53363913(4S,5S)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 31374DimethylacetamideLösungsmittel2×

Versuchsvorschrift

((4S,5S)-5-[3,5-bis(trifluoromethyl)phenyl]-4-methyl-1,3-oxazolidin-2-one) (46.2 mg, 0.148 mmol) was placed in a dry flask and DMA (3 mL) was added. NaHMDS (296 μL of a 1M solution in THF, 0.296 mmol) was added and the reaction was stirred for 5 min. At this time, 2′-(bromomethyl)-5-isopropyl-4′-(trifluoromethyl)biphenyl-2-yl methyl ether (80.0 mg, 0.207 mmol) was added by cannula in DMA (2 mL). After 30 min, the reaction was quenched with saturated NH4Cl (2 mL). The mixture was diluted with EtOAc (40 mL). The organic layer was washed with water (15 mL), and brine (15 mL), dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography with 25% EtOAc/hexanes afforded (4S,5S)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one. Rf=0.27 (25% EtOAc/hexanes). LCMS=620.2 (M+1)+. 1H NMR (CDCl3, 500 MHz; atropisomers present) δ 6.90-7.88 (m, 9H), 4.04-5.05 (m, 3H), 3.25-3.74 (m, 4H), 2.88 (m, 1H), 1.19-1.24 (m, 6H), 0.99-1.07 (m, 3H).

Aufarbeitung

  1. waitAfter 30 min
  2. customthe reaction was quenched with saturated NH4Cl (2 mL)
  3. additionThe mixture was diluted with EtOAc (40 mL)
  4. washThe organic layer was washed with water (15 mL), and brine (15 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification of the residue by flash chromatography with 25% EtOAc/hexanes

Quellen und Nachweise

ORD-Eintrag
ord-b81eecf43c794f8595c0db2b5fdd982f
Quelldatensatz
uspto-grants-2014_05
Patentnummer
US08735435B2

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