Ethyl Acetate → 3-bromo-N-(4-chloro-2-(1-cyclopropylethylcarbamoyl)phenyl)-1-(3-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazole-5-carboxamide

HRID 448813노트

반응식

HRID 448813 반응식
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]([CH:11]2[N:15]([C:16]3[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=3)[N:14]=[C:13](C3C([N+]([O-])=O)=CC=CC=3S([O-])(=O)=O)[CH2:12]2)=[O:10])=[C:4]([C:36](=[O:43])[NH:37][CH:38]([CH:40]2[CH2:42][CH2:41]2)[CH3:39])[CH:3]=1.C(O)(=O)C.[BrH:48].C(OCC)(=O)C.[OH-].[Na+]>C(O)(=O)C.O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]([CH:11]2[N:15]([C:16]3[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=3)[N:14]=[C:13]([Br:48])[CH2:12]2)=[O:10])=[C:4]([C:36](=[O:43])[NH:37][CH:38]([CH:40]2[CH2:42][CH2:41]2)[CH3:39])[CH:3]=1

참가 물질

7

반응물 4

HCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 21893785Acetic Acid Mixture with Hydrobromic AcidHCID 86761929HCID 86761929, 화합물

생성물 1

HCID 441856063-bromo-N-(4-chloro-2-(1-cyclopropylethylcarbamoyl)phenyl)-1-(3-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazole-5-carboxamide

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 962Water용매

실험 절차

400 mg of 5-(4-chloro-2-(1-cyclopropylethylcarbamoyl)phenylcarbamoyl)-1-(3-chloropyridin-2-yl)-4,5-dihydro-1H-pyrazol-3-yl3-nitrobenzene sulfonate was dissolved in 0.7 mL of acetic acid, and 0.3 mL of a 33 mass % hydrogen bromide acetic acid solution was dropwise added, followed by stirring for about 1.5 hours. After completion of the reaction, ethyl acetate, water and 1.8 mL of 1 N sodium hydroxide were added, followed by stirring and extraction with ethyl acetate. Then, concentration under reduced pressure was carried out to obtain a crude product. The crude product was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=3/2) to obtain 320 mg of the desired product in a paste form.

후처리

  1. additionwere added
  2. stirringby stirring
  3. extractionextraction with ethyl acetate
  4. concentrationThen, concentration under reduced pressure
  5. customto obtain a crude product
  6. customThe crude product was purified by silica gel column chromatography (eluent: n-hexane/ethyl acetate=3/2)

출처 및 근거

ORD 기록
ord-e213b30096f54d109454693d800938ca
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08481744B2

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