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Tetrahydrofuran → 1-phenyl-2-[2-(3,4,5-trimethoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-ethane-1,2-dione

HRID 1677403
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HRID 1677403 반응식
[C:1]1([C:7](=[O:40])[CH2:8][C:9]2[C:17]3[C:12](=[N:13][CH:14]=[C:15]([C:18]4[CH:23]=[C:22]([O:24][CH3:25])[C:21]([O:26][CH3:27])=[C:20]([O:28][CH3:29])[CH:19]=4)[N:16]=3)[N:11](S(C3C=CC(C)=CC=3)(=O)=O)[CH:10]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C1C[O:44]CC1.[OH-].[K+]>CO>[C:1]1([C:7](=[O:40])[C:8]([C:9]2[C:17]3[C:12](=[N:13][CH:14]=[C:15]([C:18]4[CH:19]=[C:20]([O:28][CH3:29])[C:21]([O:26][CH3:27])=[C:22]([O:24][CH3:25])[CH:23]=4)[N:16]=3)[NH:11][CH:10]=2)=[O:44])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1
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참가 물질

5

반응물 3

HCID 8028TetrahydrofuranHCID 14797Potassium HydroxideHCID 595410061-phenyl-2-[5-(toluene-4-sulfonyl)-2-(3,4,5-trimethoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-ethanone

생성물 1

HCID 442060411-phenyl-2-[2-(3,4,5-trimethoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-ethane-1,2-dione

시약·촉매·용매 1

HCID 887Methanol용매

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온도
40 °C

실험 절차

1-Phenyl-2-[5-(toluene-4-sulfonyl)-2-(3,4,5-trimethoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-ethanone (100 mg, 0.18 mmol) was suspended in 4 ml of a 1:1 mixture of THF and methanol and 5N potassium hydroxide (0.180 ml, 0.9 mmol) was added dropwise. The reaction was heated at 40° C. for 2 hours. The solvents were evaporated using a rotary evaporator. Ethyl acetate and 1M hydrochloric acid were added to the residue and the layers were separated. The organic layer was washed with water, dried and concentrated. The crude reaction mixture was purified by preparative thin layer chromatography (50% ethyl acetate in hexanes) and flash chromatography to yield 4 mg of 1-phenyl-2-[2-(3,4,5-trimethoxy-phenyl)-5H-pyrrolo[2,3-b]pyrazin-7-yl]-ethane-1,2-dione. MS: (M+H)+=418.

후처리

  1. additionwas added dropwise
  2. customThe solvents were evaporated
  3. customa rotary evaporator
  4. additionEthyl acetate and 1M hydrochloric acid were added to the residue
  5. customthe layers were separated
  6. washThe organic layer was washed with water
  7. customdried
  8. concentrationconcentrated
  9. customThe crude reaction mixture
  10. customwas purified by preparative thin layer chromatography (50% ethyl acetate in hexanes) and flash chromatography

출처 및 근거

ORD 기록
ord-7f1800cf426e4888ada5ae3946e40367
출처 데이터셋
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08008298B2

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