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Ethyl Acetate → 3-[2-{2-(N-carboxymethyl-N-methylcarbamoyl)methyl-1-cyclohexenyl}-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine

HRID 965353
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HRID 965353 반응식
C([O:3][C:4]([CH2:6][N:7]([CH3:39])[C:8]([CH2:10][C:11]1[CH2:16][CH2:15][CH2:14][CH2:13][C:12]=1[N:17]1[C:22](=[O:23])[CH:21]=[CH:20][C:19]([C:24]2[C:25]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)=[N:26][N:27]3[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=23)=[N:18]1)=[O:9])=[O:5])C.[OH-].[Na+].C(OCC)(=O)C>O1CCOCC1.O>[C:4]([CH2:6][N:7]([CH3:39])[C:8]([CH2:10][C:11]1[CH2:16][CH2:15][CH2:14][CH2:13][C:12]=1[N:17]1[C:22](=[O:23])[CH:21]=[CH:20][C:19]([C:24]2[C:25]([C:33]3[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=3)=[N:26][N:27]3[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=23)=[N:18]1)=[O:9])([OH:5])=[O:3]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 226292113-[2-{2-(N-ethoxycarbonylmethyl-N-methylcarbamoyl)methyl-1-cyclohexenyl}-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine

생성물 1

HCID 226291853-[2-{2-(N-carboxymethyl-N-methylcarbamoyl)methyl-1-cyclohexenyl}-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine수율 44.6%

시약·촉매·용매 2

HCID 962
Water
용매
HCID 312751,4-Dioxane용매

실험 절차

To a solution of 3-[2-{2-(N-ethoxycarbonylmethyl-N-methylcarbamoyl)methyl-1-cyclohexenyl}-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine (710 mg) in a mixture of dioxane (7 ml) and water (4 ml) was added 1N-aqueous sodium hydroxide solution (3.4 ml), which was stirred for two hours at room temperature. The reaction mixture was poured into ethyl acetate (100 ml) and aqueous layer was collected, which was adjusted to pH 1.5 with 6N-aqueous hydrochloric acid and extracted with ethyl acetate (100 ml×2). Organic layers were combined, washed in turn with water (50 ml×3) and brine (50 ml×2), and dried over magnesium sulfate. Evaporation of the solvent gave a residue, which was chromatographed on silica gel (80 ml) eluting in turn with dichloromethane, 5%, 10%, 15% methanol in dichloromethane. Fractions containing desired product were collected. Evaporation of the solvent gave a residue, which was recrystallized from a mixture of dichloromethane and n-hexane to give 3-[2-{2-(N-carboxymethyl-N-methylcarbamoyl)methyl-1-cyclohexenyl}-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine (300 mg).

후처리

  1. customwas collected
  2. extractionextracted with ethyl acetate (100 ml×2)
  3. washwashed in turn with water (50 ml×3) and brine (50 ml×2)
  4. dry with materialdried over magnesium sulfate
  5. customEvaporation of the solvent
  6. customgave a residue, which
  7. customwas chromatographed on silica gel (80 ml)
  8. washeluting in turn with dichloromethane, 5%, 10%, 15% methanol in dichloromethane
  9. additionFractions containing desired product
  10. customwere collected
  11. customEvaporation of the solvent
  12. customgave a residue, which
  13. customwas recrystallized from a mixture of dichloromethane and n-hexane

출처 및 근거

ORD 기록
ord-a0238eb8f5da42ba98a3f9e5462f2054
출처 데이터셋
uspto-grants-1998_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05773530

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