N-bromobutanimide → Ethyl 6-(bromomethyl)-4-(2,4-dichlorophenyl)-2-(3-fluoropyridin-2-yl)-1,4-dihydropyrimidine-5-carboxylate
Reaktionsgleichung
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]1[C:14]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[C:13]([CH3:20])[NH:12][C:11]([C:21]2[C:26]([F:27])=[CH:25][CH:24]=[CH:23][N:22]=2)=[N:10]1.C1C(=O)N([Br:35])C(=O)C1>>[Br:35][CH2:20][C:13]1[NH:12][C:11]([C:21]2[C:26]([F:27])=[CH:25][CH:24]=[CH:23][N:22]=2)=[N:10][CH:9]([C:3]2[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=2[Cl:1])[C:14]=1[C:15]([O:17][CH2:18][CH3:19])=[O:16]Komponenten
3
Versuchsvorschrift
Ethyl 4-(2,4-dichlorophenyl)-2-(3-fluoropyridin-2-yl)-6-methyl-1,4-dihydropyrimidine-5-carboxylate (3.14 g, 7.7 mmol) was reacted with NBS (1.51 g, 8.47 mmol) according to the procedure as described in Example 1, Step B to give the title compound as a yellow solid (2.44 g, 65%). The compound was characterized by the following spectroscopic data: