Ten of the title compounds were synthesized and their plant growth regulating activities were tes ted. All compounds were identified by 1HNMR, IR and MS analysis.
Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophe...Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophenol and tert-butyl alcohol potassium with nitrogen protection in anhydrous DMF.The structures of the target compounds were characterized by IR,1HNMR and ESI-MS.展开更多
4-(4-氨基苯氧基)-2-(甲基氨甲酰基)吡啶是合成索拉非尼的重要中间体,它可由Williamson反应合成。以离子液体为溶剂,以NaOH、无水K2CO3为碱,N-甲基-(4-氯-2-吡啶基)甲酰胺和对氨基苯酚为原料,通过Williamson反应合成出目标产物。研究了...4-(4-氨基苯氧基)-2-(甲基氨甲酰基)吡啶是合成索拉非尼的重要中间体,它可由Williamson反应合成。以离子液体为溶剂,以NaOH、无水K2CO3为碱,N-甲基-(4-氯-2-吡啶基)甲酰胺和对氨基苯酚为原料,通过Williamson反应合成出目标产物。研究了影响此反应的一些影响因素,如离子液体种类、反应温度、时间、碱等,并在此研究基础上得出了较佳的反应条件为:以[BMIM][BF4]为溶剂,对氨基苯酚与氢氧化钠的摩尔比为1∶1.1,与无水碳酸钾的摩尔比为1∶0.6,反应温度75℃,反应时间4h,在此条件下所得的收率为89%,产品结构由1 H NMR所证实。另外,离子液体至少可循环使用5次,而对收率及纯度无明显影响,有利于环保。展开更多
目的:建立HPLC法测定甲苯磺酸索拉非尼中的有关物质。方法:色谱柱为C18柱(250 mm×4.6mm,5μm),流动相A为pH2.4磷酸盐缓冲液(取磷酸二氢钾0.790 8 g,置1 000 m L水中,摇匀,用磷酸调节p H 2.4)-乙腈-乙醇(90∶6∶4),流动相B为p H 2....目的:建立HPLC法测定甲苯磺酸索拉非尼中的有关物质。方法:色谱柱为C18柱(250 mm×4.6mm,5μm),流动相A为pH2.4磷酸盐缓冲液(取磷酸二氢钾0.790 8 g,置1 000 m L水中,摇匀,用磷酸调节p H 2.4)-乙腈-乙醇(90∶6∶4),流动相B为p H 2.4磷酸盐缓冲液-乙腈-乙醇(20∶48∶32),进行梯度洗脱,流速为1.0 m L·min^(-1),柱温为35℃,检测波长为235 nm。结果:索拉非尼与各已知杂质及强制破坏产生的降解产物均分离度良好,PAPE-氨基甲酸乙酯、CTF-苯胺、CTF-氨基甲酸乙酯、4-(4-氨基苯氧基)-N-甲基吡啶-2-甲酰胺质量浓度分别在0.567 0~5.670 2μg·、0.569 1~5.691 0μg·m L^(-1)、0.573 5~5.734 8μg·、0.556 4~5.564 4μg·范围内与峰面积呈良好的线性关系,校正因子分别为3.2、1.1、1.6、2.1;定量下限分别为0.06、0.17、0.14、0.06μg·m L^(-1);回收率分别为99.5%、96.7%、99.3%、93.3%,RSD依次为0.69%、0.98%、0.65%、1.9%(n=9)。3批样品有关物质测定结果显示,已知杂质和未知杂质含量均低于0.10%。结论:该方法可用于甲苯磺酸索拉非尼有关物质的测定。展开更多
文摘Ten of the title compounds were synthesized and their plant growth regulating activities were tes ted. All compounds were identified by 1HNMR, IR and MS analysis.
文摘Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophenol and tert-butyl alcohol potassium with nitrogen protection in anhydrous DMF.The structures of the target compounds were characterized by IR,1HNMR and ESI-MS.
文摘4-(4-氨基苯氧基)-2-(甲基氨甲酰基)吡啶是合成索拉非尼的重要中间体,它可由Williamson反应合成。以离子液体为溶剂,以NaOH、无水K2CO3为碱,N-甲基-(4-氯-2-吡啶基)甲酰胺和对氨基苯酚为原料,通过Williamson反应合成出目标产物。研究了影响此反应的一些影响因素,如离子液体种类、反应温度、时间、碱等,并在此研究基础上得出了较佳的反应条件为:以[BMIM][BF4]为溶剂,对氨基苯酚与氢氧化钠的摩尔比为1∶1.1,与无水碳酸钾的摩尔比为1∶0.6,反应温度75℃,反应时间4h,在此条件下所得的收率为89%,产品结构由1 H NMR所证实。另外,离子液体至少可循环使用5次,而对收率及纯度无明显影响,有利于环保。
