Sodium hydride → (4R,5R)-3-[3,5-Bis(trifluoromethyl)benzyl]-5-[2-iodo-5-(trifluoromethyl)phenyl)-4-methyl-1,3-oxazolidin-2-one

HRID 1994526노트

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HRID 1994526 반응식
[I:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:10])[F:9])=[CH:4][C:3]=1[C@H:12]1[O:16][C:15](=[O:17])[NH:14][C@@H:13]1[CH3:18].[H-].[Na+].[F:21][C:22]([F:36])([F:35])[C:23]1[CH:24]=[C:25]([CH:28]=[C:29]([C:31]([F:34])([F:33])[F:32])[CH:30]=1)[CH2:26]Br>CN(C=O)C.CCOC(C)=O.O>[F:21][C:22]([F:35])([F:36])[C:23]1[CH:24]=[C:25]([CH:28]=[C:29]([C:31]([F:34])([F:32])[F:33])[CH:30]=1)[CH2:26][N:14]1[C@H:13]([CH3:18])[C@@H:12]([C:3]2[CH:4]=[C:5]([C:8]([F:9])([F:10])[F:11])[CH:6]=[CH:7][C:2]=2[I:1])[O:16][C:15]1=[O:17]

참가 물질

7

반응물 3

HCID 24758Sodium hydrideHCID 1225733,5-Bis(trifluoromethyl)benzyl bromideHCID 59726151(4R,5R)-5-[2-iodo-5-(trifluoromethyl)phenyl]4-methyl-1,3-oxazolidin-2-one

생성물 1

HCID 59135170(4R,5R)-3-[3,5-Bis(trifluoromethyl)benzyl]-5-[2-iodo-5-(trifluoromethyl)phenyl)-4-methyl-1,3-oxazolidin-2-one

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

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온도
0 °C

실험 절차

To a 0° C. solution of 95 mg of (4R,5R)-5-[2-iodo-5-(trifluoromethyl)phenyl]4-methyl-1,3-oxazolidin-2-one in 1 mL of DMF was added 20 mg of sodium hydride. The mixture was stirred 10 min at 0° C.; then 94 mg of 3,5-bis(trifluoromethyl)benzyl bromide was added. The mixture was stirred 10 min at 0° C., then diluted with 10 mL of EtOAc and 10 mL of water. The phases were separated and the aqueous phase was extracted with 10 mL of EtOAc. The combined organic phases were washed with 10 mL of brine, dried over Na2SO4, and concentrated. The residue was purified by flash chromatography on a Biotage Horizon, 25M column, eluting with 1 CV of 2% EtOAc in hexanes, followed by a linear gradient of EtOAc in hexanes from 2 to 100% over 10 CV to provide the title compound. Mass spectrum (ESI) 598.1 (M+1). 1H NMR (500 MHz, CDCl3): δ 8.00 (d, J=8.5 Hz, 1H), 7.77 (s, 1H), 7.58 (br s, 3H), 7.34 (dd, J=1.5 Hz, 8 Hz, 1H), 5.36 (d, J=4 Hz, 1H), 4.89 (d, J=16 Hz, 1H), 4.31 (d, J=16 Hz, 1H), 4.48 (dq, J=6 Hz, 4 Hz, 1H), 1.55 (d, J=6.5 Hz, 3H).

후처리

  1. stirringThe mixture was stirred 10 min at 0° C.
  2. customThe phases were separated
  3. extractionthe aqueous phase was extracted with 10 mL of EtOAc
  4. washThe combined organic phases were washed with 10 mL of brine
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated
  7. customThe residue was purified by flash chromatography on a Biotage Horizon, 25M column
  8. washeluting with 1 CV of 2% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-3614b2ea1a384603b412ff475db4735f
출처 데이터셋
uspto-grants-2010_01
특허 번호
US07652049B2

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