2-(1-Piperazinyl)-4-amino-6,7-dimethoxyquinazoline → 4-Amino-6,7-dimethoxy-2-[4-(oxazole-4-carbonyl)piperazin-1-yl]quinazoline Hydrochloride
反応式
[O:1]1[CH:5]=[C:4]([C:6]([Cl:8])=[O:7])[N:3]=[CH:2]1.[NH2:9][C:10]1[C:19]2[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=2)[N:13]=[C:12]([N:24]2[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]2)[N:11]=1>O1CCOCC1>[ClH:8].[NH2:9][C:10]1[C:19]2[C:14](=[CH:15][C:16]([O:22][CH3:23])=[C:17]([O:20][CH3:21])[CH:18]=2)[N:13]=[C:12]([N:24]2[CH2:29][CH2:28][N:27]([C:6]([C:4]3[N:3]=[CH:2][O:1][CH:5]=3)=[O:7])[CH2:26][CH2:25]2)[N:11]=1参加物
4
反応条件
- 温度
- 20 °C
実験手順
A solution of oxazole-4-carbonyl chloride (0.73 g., 5.53 mmole) in dioxane was added to a solution of 4-amino-6,7-dimethoxy-2-(1-piperazinyl)quinazoline (1.60 g., 5.53 mmole) in dioxane. The mixture was heated at reflux for 0.5 hour, then was stirred at 20° C. for 64 hours. Filtration gave the title compound having a m.p. of 291°-294° C. with decomposition after recrystallization from acqueous ethanol.