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Iodoethane → 5-[9-Chloro-6-(1-ethoxypropyl)-3,4-dihydropyrimido[1,2-a]benzimidazol-1(2H)-yl]-N,N,4-trimethylpyridin-2-amine

HRID 1628731
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HRID 1628731 반응식
[H-].[Na+].[Cl:3][C:4]1[C:12]2[N:11]=[C:10]3[N:13]([C:17]4[CH:18]=[N:19][C:20]([N:24]([CH3:26])[CH3:25])=[CH:21][C:22]=4[CH3:23])[CH2:14][CH2:15][CH2:16][N:9]3[C:8]=2[C:7]([CH:27]([OH:30])[CH2:28][CH3:29])=[CH:6][CH:5]=1.[CH2:31](I)[CH3:32]>CN(C)C=O.[Cl-].[NH4+]>[Cl:3][C:4]1[C:12]2[N:11]=[C:10]3[N:13]([C:17]4[C:22]([CH3:23])=[CH:21][C:20]([N:24]([CH3:25])[CH3:26])=[N:19][CH:18]=4)[CH2:14][CH2:15][CH2:16][N:9]3[C:8]=2[C:7]([CH:27]([O:30][CH2:31][CH3:32])[CH2:28][CH3:29])=[CH:6][CH:5]=1
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참가 물질

6

반응물 3

HCID 6340IodoethaneHCID 24758Sodium hydrideHCID 577861671-{9-Chloro-1-[6-(dimethylamino)-4-methylpyridin-3-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl}propan-1-ol

생성물 1

HCID 577860355-[9-Chloro-6-(1-ethoxypropyl)-3,4-dihydropyrimido[1,2-a]benzimidazol-1(2H)-yl]-N,N,4-trimethylpyridin-2-amine수율 50.1%

시약·촉매·용매 2

HCID 6228
Dimethylformamide
용매
HCID 25517Ammonium Chloride용매

실험 절차

Sodium hydride (60% in oil, 27.1 mg, 0.678 mmol) was added to a stirred solution of 1-{9-chloro-1-[6-(dimethylamino)-4-methylpyridin-3-yl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl}propan-1-ol (226 mg, 0.565 mmol) in N,N-dimethylformamide (5.0 mL) at room temperature. After stirring 5 min, ethyl iodide (132 mg, 0.848 mmol) was added to the mixture, and the mixture was stirred at room temperature for 6 hr. The mixture was diluted with aqueous saturated ammonium chloride, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture. The filtrate was concentrated in vacuo to give the solid, which was recrystallized from ethyl acetate to give the title compound as a colorless crystal (121 mg, 0.283 mmol, 50%).

후처리

  1. stirringthe mixture was stirred at room temperature for 6 hr
  2. extractionextracted with ethyl acetate
  3. washThe combined organic layer was washed with brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by flash column chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture
  8. concentrationThe filtrate was concentrated in vacuo
  9. customto give the solid, which
  10. customwas recrystallized from ethyl acetate

출처 및 근거

ORD 기록
ord-726a1590b6a74a9488dceb9d0e22776f
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08785460B2

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