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Ethyl Acetate → 5-Chloro-1-(5-chloro-2-(methylsulfonyl)benzyl)-2-imino-1,2-dihydropyridine-3-carboxamide hydrochloride

HRID 447799
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HRID 447799 반응식
[NH2:1][C:2]1[N:10]=[CH:9][C:8]([Cl:11])=[CH:7][C:3]=1[C:4]([NH2:6])=[O:5].Br[CH2:13][C:14]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:15]=1[S:21]([CH3:24])(=[O:23])=[O:22].C(OCC)(=O)C>CN(C=O)C>[ClH:11].[Cl:11][C:8]1[CH:7]=[C:3]([C:4]([NH2:6])=[O:5])[C:2](=[NH:1])[N:10]([CH2:13][C:14]2[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:15]=2[S:21]([CH3:24])(=[O:23])=[O:22])[CH:9]=1
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참가 물질

5

반응물 3

HCID 8857Ethyl AcetateHCID 668768832-Amino-5-chloronicotinamideHCID 668775512-(Bromomethyl)-4-chloro-1-(methylsulfonyl)benzene

생성물 1

HCID 669700865-Chloro-1-(5-chloro-2-(methylsulfonyl)benzyl)-2-imino-1,2-dihydropyridine-3-carboxamide hydrochloride수율 11.9%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

(Step 4) A solution of 2-amino-5-chloronicotinamide (210 mg) and 2-(bromomethyl)-4-chloro-1-(methylsulfonyl)benzene obtained in Step 3 (450 mg) in DMF (5 ml) was stirred at 100° C. for 3 hr. The mixture was allowed to cool to room temperature, ethyl acetate was added, and the precipitated crystals were collected by filtration. The obtained crystals were dissolved in aqueous sodium hydrogen carbonate solution, and the solution was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by basic silica gel column chromatography (ethyl acetate:hexane=1:1→3:1). The obtained yellow solid was dissolved in methanol, and 2N hydrogen chloride-ethyl acetate solution was added. The solvent was evaporated under reduced pressure, and the residue was crystallized from methanol-ethyl acetate to give the title compound (30 mg).

후처리

  1. filtrationthe precipitated crystals were collected by filtration
  2. dissolutionThe obtained crystals were dissolved in aqueous sodium hydrogen carbonate solution
  3. extractionthe solution was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customThe residue was purified by basic silica gel column chromatography (ethyl acetate:hexane=1:1→3:1)
  8. dissolutionThe obtained yellow solid was dissolved in methanol
  9. addition2N hydrogen chloride-ethyl acetate solution was added
  10. customThe solvent was evaporated under reduced pressure
  11. customthe residue was crystallized from methanol-ethyl acetate

출처 및 근거

ORD 기록
ord-bbb97eab0fd5411b80b01add44e4f78d
출처 데이터셋
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08481569B2

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