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

HRID 1994471

反応式

HRID 1994471 の反応式
[H-].[Na+].[CH3:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]2[O:14][C:13](=[O:15])[NH:12][CH2:11]2)=[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])[CH:31]=[CH:30][C:29]=1[O:37][CH3:38]>C1COCC1>[CH:34]([C:32]1[CH:31]=[CH:30][C:29]([O:37][CH3:38])=[C:28]([C:19]2[CH:20]=[CH:21][C:22]([C:24]([F:27])([F:25])[F:26])=[CH:23][C:18]=2[CH2:17][N:12]2[CH2:11][CH:10]([C:7]3[CH:6]=[CH:5][C:4]([CH3:3])=[CH:9][CH:8]=3)[O:14][C:13]2=[O:15])[CH:33]=1)([CH3:36])[CH3:35]

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 124709465-(4-Methylphenyl)-1,3-oxazolidin-2-oneHCID 533636432-(Bromomethyl)-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl

生成物 1

HCID 116630553-{[5'-Isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-5-(4-methylphenyl)-1,3-oxazolidin-2-one

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

Sodium hydride (6.4 mg of a 60% dispersion in mineral oil, 0.161 mmol) was added to a stirred solution of 5-(4-methylphenyl)-1,3-oxazolidin-2-one (37.7 mg, 0.0973 mmol) in dry THF (1 mL) at room temperature under N2. The reaction was stirred for 30 min and a solution of 2-(bromomethyl)-5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl (19.0 mg, 0.107 mmol) in dry THF (2 mL) was added by cannula. The reaction was stirred at room temperature for 3 days. The reaction was quenched with saturated NH4Cl (10 mL) and extracted with EtOAc (3×20 mL). The combined organic extracts were washed with brine (10 mL), dried (Na2SO4) and concentrated in vacuo to give the crude product. This was purified by flash chromatography (Si, 12×160 mm, 0-80% EtOAc in hexanes gradient) to afford 3-{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-5-(4-methylphenyl)-1,3-oxazolidin-2-one as a colorless oil. Rf=0.37 (20% EtOAc/hexanes). LCMS calc.=484.21; found=484.2 (M+1)+. 1H NMR (benzene-d6, 500 MHz, 1:1 mixture of atropisomers) δ 7.76 (s, 0.5H), 7.65 (s, 0.5H), 7.31 (d, J=7.7 Hz, 1H), 7.08 (dd, J=8.4, 2.4 Hz, 1H), 7.05 (br d, J=7.8 Hz, 1H), 6.95-6.86 (m, 5H), 6.58 (t, J=7.7 Hz, 1H), 4.74 (t, J=8.0 Hz, 0.5H), 4.70 (t, J=8.0 Hz, 0.5H), 4.50 (d, J=15.7 Hz, 0.5H), 4.42 (d, J=15.7 Hz, 0.5H), 4.25 (d, J=15.7 Hz, 0.5H), 4.11 (d, J=15.7 Hz, 0.5H), 3.26 (s, 1.5H), 3.21 (s, 1.5H), 2.81 (t, J=8.6 Hz, 0.5H), 2.76 (septet, J=7.0 Hz, 1H), 2.68 (t, J=8.6 Hz, 0.5H), 2.55 (t, J=8.6 Hz, 0.5H), 2.53 (t, J=8.6 Hz, 0.5H), 2.04 (s, 3H), 1.20 (t, J=7.0 Hz, 3H), 1.19 (t, J=7.0 Hz, 3H).

後処理

  1. stirringThe reaction was stirred at room temperature for 3 days
  2. customThe reaction was quenched with saturated NH4Cl (10 mL)
  3. extractionextracted with EtOAc (3×20 mL)
  4. washThe combined organic extracts were washed with brine (10 mL)
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo
  7. customto give the crude product
  8. customThis was purified by flash chromatography (Si, 12×160 mm, 0-80% EtOAc in hexanes gradient)

出典と根拠

ORDレコード
ord-76ffee4d40a94066a196fd823105a352
出典データセット
uspto-grants-2010_01
特許番号
US07652049B2

関連ノート

読み込み中…