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3-(3,4,5-Trimethoxyphenyl)acrylic acid → 3-Propyl-8-[2-(3,4,5-trimethoxy-phenyl)-vinyl]-3,7-dihydro-purine-2,6-dione

HRID 1292425
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HRID 1292425 반응식
[NH2:1][C:2]1[C:3](=[O:13])[NH:4][C:5](=[O:12])[N:6]([CH2:9][CH2:10][CH3:11])[C:7]=1[NH2:8].C1(N=C=NC2CCCCC2)CCCCC1.ON1C2C=CC=CC=2N=N1.[CH3:39][O:40][C:41]1[CH:42]=[C:43]([CH:49]=[C:50]([O:54][CH3:55])[C:51]=1[O:52][CH3:53])[CH:44]=[CH:45][C:46](O)=O>CN(C)C=O>[CH2:9]([N:6]1[C:7]2[N:8]=[C:46](/[CH:45]=[CH:44]/[C:43]3[CH:49]=[C:50]([O:54][CH3:55])[C:51]([O:52][CH3:53])=[C:41]([O:40][CH3:39])[CH:42]=3)[NH:1][C:2]=2[C:3](=[O:13])[NH:4][C:5]1=[O:12])[CH2:10][CH3:11]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 70213-(3,4,5-Trimethoxyphenyl)acrylic acidHCID 10868DicyclohexylcarbodiimideHCID 757711-HydroxybenzotriazoleHCID 106313415,6-Diamino-1-propyl-1,2,3,4-tetrahydropyrimidine-2,4-dione

생성물 1

HCID 151708643-Propyl-8-[2-(3,4,5-trimethoxy-phenyl)-vinyl]-3,7-dihydro-purine-2,6-dione수율 60%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

5,6-Diamino-1-propyluracil (2.00 g, 11 mmol) was suspended in 40 ml of N,N-dimethylformamide. To the suspension were added 3.37 g (16 mmol) of N,N'-dicyclohexylcarbodiimide and 2.00 g (13 mmol) of 1-hydroxybenzotriazole. Then, 2.59 g (11 mmol) of 3,4,5-trimethoxycinnamic acid was slowly added thereto in several portions, and the mixture was stirred overnight at room temperature. After insoluble substances were removed by filtration, the filtrate was concentrated under reduced pressure and 40 ml of a 2N aqueous solution of sodium hydroxide was added to the residue. The mixture was heated under reflux for 30 minutes, followed by neutralization. Deposited crystals were collected by filtration and recrystallized from isopropanol/water to give 2.51 g (overall yield: 60%) of Compound 22 as a yellow powder.

후처리

  1. customAfter insoluble substances were removed by filtration
  2. concentrationthe filtrate was concentrated under reduced pressure and 40 ml of a 2N aqueous solution of sodium hydroxide
  3. additionwas added to the residue
  4. temperatureThe mixture was heated
  5. temperatureunder reflux for 30 minutes
  6. filtrationDeposited crystals were collected by filtration
  7. customrecrystallized from isopropanol/water

출처 및 근거

ORD 기록
ord-038f24034db9491a8186406b565c0add
출처 데이터셋
uspto-grants-1998_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05756735

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