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Pyridine → (S)-methyl 3-(2-methylpiperidin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate

HRID 1403449
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HRID 1403449 반응식
[CH3:1][C@H:2]1[CH2:7][CH2:6][CH2:5][CH2:4][N:3]1[C:8]1[C:9](=[O:22])[NH:10][C:11]2[C:16]([N:17]=1)=[CH:15][C:14]([C:18]([O:20][CH3:21])=[O:19])=[CH:13][CH:12]=2.N1C=CC=CC=1.[O:29](S(C(F)(F)F)(=O)=O)[S:30]([C:33]([F:36])([F:35])[F:34])(=O)=[O:31]>ClCCl>[CH3:1][C@H:2]1[CH2:7][CH2:6][CH2:5][CH2:4][N:3]1[C:8]1[C:9]([O:22][S:30]([C:33]([F:36])([F:35])[F:34])(=[O:31])=[O:29])=[N:10][C:11]2[C:16]([N:17]=1)=[CH:15][C:14]([C:18]([O:20][CH3:21])=[O:19])=[CH:13][CH:12]=2
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참가 물질

5

반응물 3

HCID 1049PyridineHCID 67749Trifluoromethanesulfonic anhydrideHCID 70654252(S)-methyl 3-(2-methylpiperidin-1-yl)-2-oxo-1,2-dihydroquinoxaline-6-carboxylate

생성물 1

HCID 86670568(S)-methyl 3-(2-methylpiperidin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of (S)-methyl 3-(2-methylpiperidin-1-yl)-2-oxo-1,2-dihydroquinoxaline-6-carboxylate (200 mg, 0.66 mmol) in dichloromethane (30 mL) was added pyridine (208 mg, 2.64 mmol). Then Tf2O (372 mg, 1.32 mmol) was added and stirred overnight at room temperature. The reaction was then quenched by the addition of ice-water (100 mL) and extracted with dichloromethane (3×15 mL), the organic layers combined and dried over anhydrous magnesium sulfate and concentrated in vacuo to afford (S)-methyl 3-(2-methylpiperidin-1-yl)-2-(trifluoromethylsulfonyloxy)quinoxaline-6-carboxylate as red oil (250 mg, crude).

후처리

  1. customThe reaction was then quenched by the addition of ice-water (100 mL)
  2. extractionextracted with dichloromethane (3×15 mL)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-ce827be2a4324b8e870ee1c234df35b6
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08912188B2

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