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

反応式

HRID 1028537 の反応式
[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

参加物

6

反応物 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

生成物 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

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 31374Dimethylacetamide溶媒2 回

実験手順

((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).

後処理

  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

出典と根拠

ORDレコード
ord-b81eecf43c794f8595c0db2b5fdd982f
出典データセット
uspto-grants-2014_05
特許番号
US08735435B2

関連ノート

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