Ethyl Acetate → 3-[5-amino-4-(3-iodo-benzoyl)-pyrazol-1-yl]-N-methoxy-4-methyl-benzamide

HRID 884766

반응식

HRID 884766 반응식
[NH:1]([C:3]1[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=1[CH3:14])[C:6]([NH:8][O:9][CH3:10])=[O:7])[NH2:2].[I:15][C:16]1[CH:17]=[C:18]([CH:32]=[CH:33][CH:34]=1)[C:19]([C:21](=[CH:24]NC1C=CC=CC=1)[C:22]#[N:23])=[O:20].CCOC(C)=O>CCO>[NH2:23][C:22]1[N:1]([C:3]2[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=2[CH3:14])[C:6]([NH:8][O:9][CH3:10])=[O:7])[N:2]=[CH:24][C:21]=1[C:19](=[O:20])[C:18]1[CH:32]=[CH:33][CH:34]=[C:16]([I:15])[CH:17]=1

참가 물질

5

반응물 3

HCID 8857Ethyl AcetateHCID 116153463-hydrazino-N-methoxy-4-methyl-benzamide2회HCID 670242742-(3-Iodobenzoyl)-3-phenylaminoacrylonitrile

생성물 1

HCID 117848203-[5-amino-4-(3-iodo-benzoyl)-pyrazol-1-yl]-N-methoxy-4-methyl-benzamide수율 55%

시약·촉매·용매 1

HCID 702Ethanol용매

반응 조건

온도
67.5 °C

실험 절차

To a stirred solution 3-hydrazino-N-methoxy-4-methyl-benzamide 2 (116 mg, estimated 0.14 mmol) in EtOH (10 ml) was added 2-(3-iodo-benzoyl)-3-phenylamino-acrylonitrile 3 (59 mg, 0.14 mmol, preparation: International Patent Application Publication No. WO 02/57101 A1, pg. 84) and mixture was heated (bath T=65-70° C.) for 4 hr, when additional 3-hydrazino-N-methoxy-4-methyl-benzamide 2 (80 mg, 0.11 mmol) was added and the mixture was heated at the same temperature for 27 hr. It was cooled to room temperature, concentrated and redissolved in EtOAc before it was washed with water and brine, dried over Na2SO4, concentrated to give a crude semisolid. The mixture was then purified by flash chromatography, eluting with 1:1 EtOAc/hexanes to remove impurities then 100% EtOAc give 3-[5-amino-4-(3-iodo-benzoyl)-pyrazol-1-yl]-N-methoxy-4-methyl-benzamide 4 as an off-white solid (38 mg, 0.08 mmol, 55%). HPLC (6 minute gradient) tR 3.49 min; MS m/z 476.96 [M+H]+; 1H NMR (CD3OD, 300 MHz) δ 8.10 (s, 1 H), 7.95 (d, J=8.0, 1 H), 7.88 (d, J=8.0, 1 H), 7.82 (m, 2 H), 7.78 (s, 1 H), 7.58 (d, J=8.0, 1 H), 7.33 (t, J=7.8, 1 H), 5.02 (s. 3 H), 2.33 (s, 3 H) ppm; 13C NMR (DMSO-d6, 125 MHz.) δ 189.3, 154.3, 143.5, 143.3, 142.0, 138.3, 137.4, 133.5, 132.9, 132.0, 130.4, 128.8, 128.4, 104.8, 95.4, 64.8, 18.2 ppm.

후처리

  1. custom59 mg, 0.14 mmol, preparation
  2. temperaturethe mixture was heated at the same temperature for 27 hr
  3. temperatureIt was cooled to room temperature
  4. concentrationconcentrated
  5. dissolutionredissolved in EtOAc before it
  6. washwas washed with water and brine
  7. dry with materialdried over Na2SO4
  8. concentrationconcentrated
  9. customto give a crude semisolid
  10. customThe mixture was then purified by flash chromatography
  11. washeluting with 1:1 EtOAc/hexanes
  12. customto remove impurities

출처 및 근거

ORD 기록
ord-bd8f3ebe1cb244c8b78d8dfc5fa37725
출처 데이터셋
uspto-grants-2012_08
특허 번호
US08242117B2

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