Pyridine → [1-(2,2-Dimethylpropionyloxymethyl)-7-(2-formylphenyl)-2,6-dioxo-1,2,6,7-tetrahydropurin-3-yl]methyl 2,2-dimethylpropionate

HRID 1792079노트

반응식

HRID 1792079 반응식
[CH3:1][C:2]([CH3:27])([CH3:26])[C:3]([O:5][CH2:6][N:7]1[C:15]2[N:14]=[CH:13][NH:12][C:11]=2[C:10](=[O:16])[N:9]([CH2:17][O:18][C:19](=[O:24])[C:20]([CH3:23])([CH3:22])[CH3:21])[C:8]1=[O:25])=[O:4].[CH:28]([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=1B(O)O)=[O:29].N1C=CC=CC=1>CN(C)C=O.C(OCC)(=O)C.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[CH3:22][C:20]([CH3:21])([CH3:23])[C:19]([O:18][CH2:17][N:9]1[C:10](=[O:16])[C:11]2[N:12]([C:31]3[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=3[CH:28]=[O:29])[CH:13]=[N:14][C:15]=2[N:7]([CH2:6][O:5][C:3](=[O:4])[C:2]([CH3:27])([CH3:26])[CH3:1])[C:8]1=[O:25])=[O:24]

참가 물질

7

반응물 3

HCID 1049PyridineHCID 2921892-Formylphenylboronic acidHCID 153324012,2-Dimethylpropionic acid [3-(2,2-dimethylpropionyloxymethyl)-2,6-dioxo-2,3,6,7-tetrahydropurin-1-yl]methyl ester

생성물 1

HCID 23536861[1-(2,2-Dimethylpropionyloxymethyl)-7-(2-formylphenyl)-2,6-dioxo-1,2,6,7-tetrahydropurin-3-yl]methyl 2,2-dimethylpropionate수율 31.7%

시약·촉매·용매 3

HCID 8895Cupric acetate촉매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

2,2-Dimethylpropionic acid [3-(2,2-dimethylpropionyloxymethyl)-2,6-dioxo-2,3,6,7-tetrahydropurin-1-yl]methyl ester (10.2 g), 2-formylphenylboronic acid (8.04 g), and copper(II) acetate (7.30 g) were suspended in N,N-dimethylformamide (50 ml), pyridine (4.34 ml) was added thereto, and the mixture was stirred at room temperature for 37 hours. The reaction mixture was diluted with ethyl acetate; and washed with water. The organic layer was dried over anhydrous magnesium sulfate and filtered. The filtrate was concentrated under reduced pressure and the residue was purified by silica gel column chromatography to give 4.12 g of the title compound from the elution fraction of hexane-ethyl acetate (1:2).

후처리

  1. washand washed with water
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-05e81e29142c4ae0868982a133fee016
출처 데이터셋
uspto-grants-2006_07
특허 번호
US07074798B2

반응 노트

불러오는 중…