1,8-Diazabicyclo(5.4.0)undec-7-ene → 4-(7-Allyl-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperazine-1-carboxylic acid tert-butyl ester

HRID 1791999노트

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HRID 1791999 반응식
[CH2:1]([N:4]1[C:12]2[C:11](=[O:13])[N:10]([CH3:14])[C:9](=[O:15])[N:8]([CH3:16])[C:7]=2[N:6]=[C:5]1Cl)[CH:2]=[CH2:3].[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]1)=[O:24])([CH3:21])([CH3:20])[CH3:19].N12CCCN=C1CCCCC2>CN1CCCC1=O>[C:18]([O:22][C:23]([N:25]1[CH2:30][CH2:29][N:28]([C:5]2[N:4]([CH2:1][CH:2]=[CH2:3])[C:12]3[C:11](=[O:13])[N:10]([CH3:14])[C:9](=[O:15])[N:8]([CH3:16])[C:7]=3[N:6]=2)[CH2:27][CH2:26]1)=[O:24])([CH3:21])([CH3:19])[CH3:20]

참가 물질

5

반응물 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 143452tert-Butyl piperazine-1-carboxylateHCID 7386827-Allyl-8-chloro-1,3-dimethyl-3,7-dihydropurine-2,6-dione

생성물 1

HCID 235369534-(7-Allyl-1,3-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperazine-1-carboxylic acid tert-butyl ester수율 94.4%

시약·촉매·용매 1

HCID 13387N-methyl-2-pyrrolidone용매

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온도
140 °C

실험 절차

A mixture of 7-allyl-8-chloro-1,3-dimethyl-3,7-dihydropurine-2,6-dione (1.0 g), piperazine-1-carboxylic acid tert-butyl ester (1.1 g), 1,8-diazabicyclo[5,4,0]undec-7-ene (DBU) (0.59 ml), and 1-methylpyrrolidin-2-one (2 ml) were stirred under nitrogen atmosphere in an oil bath at 140° C. for 2 hours. The reaction mixture was extracted with ethyl acetate and water. The organic layer was washed with water followed by saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography with 10–20% (20% 2-propanol/ethyl acetate)/hexane to give 1.5 g of the title compound.

후처리

  1. extractionThe reaction mixture was extracted with ethyl acetate and water
  2. washThe organic layer was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography with 10–20% (20% 2-propanol/ethyl acetate)/hexane

출처 및 근거

ORD 기록
ord-c838971beba043dab0973b4dd0a71f71
출처 데이터셋
uspto-grants-2006_07
특허 번호
US07074798B2

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