Iodine → HCID 118022085, 화합물

HRID 575679노트

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HRID 575679 반응식
[CH2:1]([S:3]([C:6]1[N:11]=[CH:10][C:9]([OH:12])=[CH:8][CH:7]=1)(=[O:5])=[O:4])[CH3:2].[I:13]I>C1COCC1.O>[CH2:1]([S:3]([C:6]1[N:11]=[C:10]([I:13])[C:9]([OH:12])=[CH:8][CH:7]=1)(=[O:4])=[O:5])[CH3:2].[CH2:1]([S:3]([C:6]1[N:11]=[CH:10][C:9]([OH:12])=[C:8]([I:13])[CH:7]=1)(=[O:4])=[O:5])[CH3:2]

참가 물질

6

반응물 2

HCID 807IodineHCID 231454076-(Ethanesulfonyl)pyridin-3-ol

생성물 2

HCID 118022085HCID 118022085, 화합물HCID 118022404HCID 118022404, 화합물

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of the title compound from Step 4 (3 g, 16 mmol) in a mixture of THF (20 mL) and H2O (20 mL) was added KI (662 mg, 4 mmol) and iodine (6.1 g, 24 mmol). The reaction was stirred at rt for 1 hour and then heated to 60° C. for another 17 hours. The reaction mixture was then cooled to room temperature and concentrated under reduced pressure to remove the THF. The mixture was diluted with water (100 mL) and extracted with DCM (10 mL×3). The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated. The residue was purified by prep-HPLC to afford 6-ethylsulfonyl-2-iodopyridin-3-ol and 6-ethylsulfonyl-4-iodopyridin-3-ol as white solids. 6-ethylsulfonyl-2-iodopyridin-3-ol: 1H NMR (DMSO-d6, 400 MHz) δ 7.85 (d, J=8.4 Hz, 1H), 7.31 (d, J=8.4 Hz, 1H), 3.30 (q, J=7.2 Hz, 2H), 1.11 (t, J=7.2 Hz 3H). LCMS: 313.8 (M+1)+; 6-ethylsulfonyl-4-iodopyridin-3-ol: 1H NMR (DMSO-d6, 400 MHz) δ 8.23 (s, 1H), 8.18 (s, 1H), 3.31 (q, J=7.2 Hz, 2H, overlapped with solvent peak), 1.10 (t, J=7.2 Hz 3H). LCMS: 313.8 (M+1)+

후처리

  1. temperatureheated to 60° C. for another 17 hours
  2. temperatureThe reaction mixture was then cooled to room temperature
  3. concentrationconcentrated under reduced pressure
  4. customto remove the THF
  5. additionThe mixture was diluted with water (100 mL)
  6. extractionextracted with DCM (10 mL×3)
  7. washThe combined organic layers were washed with brine
  8. dry with materialdried over Na2SO4
  9. filtrationfiltered
  10. concentrationconcentrated
  11. customThe residue was purified by prep-HPLC

출처 및 근거

ORD 기록
ord-1abcdae7c92f4e3b912d3fb3392956a0
출처 데이터셋
uspto-grants-2015_05
특허 번호
US09034900B2

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