2-(4-Bromo-3,5-dimethoxyphenyl)furan → 1-(5-(4-Bromo-3,5-dimethoxyphenyl)furan-2-yl)-2-ethoxy-2-(4-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)ethanone
Reaktionsgleichung
[Br:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([C:10]2[O:11][CH:12]=[CH:13][CH:14]=2)=[CH:4][C:3]=1[O:15][CH3:16].[CH2:17]([O:19][CH:20]([C:27]1[CH:32]=[CH:31][C:30]([C:33]2[O:34][C:35]([CH3:38])=[N:36][N:37]=2)=[CH:29][CH:28]=1)[C:21](N(OC)C)=[O:22])[CH3:18]>>[Br:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([C:10]2[O:11][C:12]([C:21](=[O:22])[CH:20]([O:19][CH2:17][CH3:18])[C:27]3[CH:28]=[CH:29][C:30]([C:33]4[O:34][C:35]([CH3:38])=[N:36][N:37]=4)=[CH:31][CH:32]=3)=[CH:13][CH:14]=2)=[CH:4][C:3]=1[O:15][CH3:16]Komponenten
3
Versuchsvorschrift
1-(5-(4-Bromo-3,5-dimethoxyphenyl)furan-2-yl)-2-ethoxy-2-(4-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)ethanone was prepared from 2-(4-bromo-3,5-dimethoxyphenyl)furan and 2-ethoxy-N-methoxy-N-methyl-2-(4-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)acetamide according to the procedure used in Example 30. Purification by chromatography (60% EtOAc/hexanes) gave the product as a pale yellow solid (0.070 g, 19% yield). MS: m/z 527.3 [M+H]+.