Ethyl isocyanate → N-{3-[(2-{[(ethylamino)carbonyl]amino}imidazo[1,2-a]pyridin-6-yl) oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide

HRID 1874409

반응식

HRID 1874409 반응식
[NH2:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:18][C:19]([C:21]4[N:25]([CH3:26])[N:24]=[C:23]([CH3:27])[CH:22]=4)=[O:20])[CH:14]=[C:15]([CH3:17])[CH:16]=3)=[CH:6][N:5]2[CH:28]=1.[CH2:29]([N:31]=[C:32]=[O:33])[CH3:30]>N1C=CC=CC=1>[CH2:29]([NH:31][C:32]([NH:1][C:2]1[N:3]=[C:4]2[CH:9]=[CH:8][C:7]([O:10][C:11]3[CH:12]=[C:13]([NH:18][C:19]([C:21]4[N:25]([CH3:26])[N:24]=[C:23]([CH3:27])[CH:22]=4)=[O:20])[CH:14]=[C:15]([CH3:17])[CH:16]=3)=[CH:6][N:5]2[CH:28]=1)=[O:33])[CH3:30]

참가 물질

4

반응물 2

HCID 8022Ethyl isocyanateHCID 57749097N-{3-[(2-aminoimidazo[1,2-a]pyridin-6-yl)oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide

생성물 1

HCID 57749217N-{3-[(2-{[(ethylamino)carbonyl]amino}imidazo[1,2-a]pyridin-6-yl) oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide수율 22%

시약·촉매·용매 1

HCID 1049Pyridine용매

반응 조건

온도
50 °C

실험 절차

A mixture of N-{3-[(2-aminoimidazo[1,2-a]pyridin-6-yl)oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide (301 mg, 0.800 mmol), ethyl isocyanate (100 μL, 1.27 mmol) and pyridine (10 mL) was stirred at 50° C. for 18 hr. The mixture was concentrated under reduced pressure and ethyl acetate was added to the residue. The mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by column chromatography (silica gel, hexane/ethyl acetate=100/0→0/100) and recrystallized from ethyl acetate-hexane to give the title compound (78.0 mg, 22%) as a pale-yellow solid.

후처리

  1. concentrationThe mixture was concentrated under reduced pressure and ethyl acetate
  2. additionwas added to the residue
  3. washThe mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltrated
  6. concentrationThe filtrate was concentrated under reduced pressure
  7. customthe residue was purified by column chromatography (silica gel, hexane/ethyl acetate=100/0→0/100)
  8. customrecrystallized from ethyl acetate-hexane

출처 및 근거

ORD 기록
ord-9ca562863e3e4a59960e56df53cc40bd
출처 데이터셋
uspto-grants-2012_11
특허 번호
US08304557B2

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