Sodium hydride → (4S)-4-benzyl-3-{[4'-fluoro-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-1,3-oxazolidin-2-one

HRID 1028645ノート

反応式

HRID 1028645 の反応式
[H-].[Na+].[CH2:3]([C@H:10]1[CH2:14][O:13][C:12](=[O:15])[NH:11]1)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.Br[CH2:17][C:18]1[CH:23]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:21]=[CH:20][C:19]=1[C:28]1[CH:33]=[C:32]([CH:34]([CH3:36])[CH3:35])[C:31]([F:37])=[CH:30][C:29]=1[O:38][CH3:39]>C1COCC1>[CH2:3]([C@H:10]1[CH2:14][O:13][C:12](=[O:15])[N:11]1[CH2:17][C:18]1[CH:23]=[C:22]([C:24]([F:25])([F:26])[F:27])[CH:21]=[CH:20][C:19]=1[C:28]1[CH:33]=[C:32]([CH:34]([CH3:36])[CH3:35])[C:31]([F:37])=[CH:30][C:29]=1[O:38][CH3:39])[C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=1

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 736225(S)-4-Benzyl-2-oxazolidinoneHCID 533638292'-(Bromomethyl)-4-fluoro-5-isopropyl-2-methoxy-4'-(trifluoromethyl)biphenyl2 回

生成物 1

HCID 11627469(4S)-4-benzyl-3-{[4'-fluoro-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-1,3-oxazolidin-2-one

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒3 回

実験手順

A stirred suspension of sodium hydride (60% in oil, 37 mg, 0.926 mmol) in THF (1 mL) was treated at 0° C. with (S)-4-benzyl-2-oxazolidinone (33 mg, 0.185 mmol) dissolved in THF (1 mL), under an atmosphere of N2. The reaction was stirred for 20 min and a solution of 2′-(bromomethyl)-4-fluoro-5-isopropyl-2-methoxy-4′-(trifluoromethyl)biphenyl (Intermediate 10, 50 mg, 0.124 mmol) in THF (1 mL) was added dropwise. The reaction was stirred at room temperature for 60 h. The reaction was quenched with H2O (1 mL) and partitioned between EtOAc (25 mL) and H2O (10 mL). The aqueous phase was re-extracted with EtOAc (3×15 mL) and the combined organic extracts were washed with brine (25 mL), dried (MgSO4) and concentrated in vacuo to give the crude product. This was purified by flash silica-gel chromatography (0-25% EtOAc/hexanes gradient) to afford (4S)-4-benzyl-3-{[4′-fluoro-5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-1,3-oxazolidin-2-one as a clear glass. LCMS=502.3 (M+1)+. 1H NMR (CDCl3, 500 MHz, mixture of atropisomers) δ 7.69-7.64 (m, 1H), 7.58 (s, 1H), 7.39-7.36 (m, 1 H), 7.29-7.24 (m, 3 H), 7.06 (d, J=8.5 Hz, 1H), 6.97-6.91 (m, 2 H), 6.73 (d, J=11.7, 1H), 4.79 (d, J=15.8 Hz, 1H), 4.30 (d, J=15.8 Hz, 1 H), 4.08-4.05 (m, 1H), 3.99-3.97 (m, 1H), 3.76 (s, 3H), 3.65-3.58 (m, 1H), 3.27-3.17 (m, 1 H), 2.81 (dd, J=13.5, 4.1 Hz, 1H), 2.45-2.40 (m, 1 H), 1.30-1.4 (m, 6 H).

後処理

  1. stirringThe reaction was stirred at room temperature for 60 h
  2. customThe reaction was quenched with H2O (1 mL)
  3. custompartitioned between EtOAc (25 mL) and H2O (10 mL)
  4. extractionThe aqueous phase was re-extracted with EtOAc (3×15 mL)
  5. washthe combined organic extracts were washed with brine (25 mL)
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in vacuo
  8. customto give the crude product
  9. customThis was purified by flash silica-gel chromatography (0-25% EtOAc/hexanes gradient)

出典と根拠

ORDレコード
ord-403e71c5f4664812b09fd1a2025bf863
出典データセット
uspto-grants-2014_05
特許番号
US08735435B2

反応ノート

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