结构类型3和4的4 H -3,1-苯并恶嗪-4-酮可通过环化反应获得。通过Wohl-Ziegler溴化和随后与亚磷酸三烷基酯的Michaelis-Arbuzow反应来实现膦酸酯基团的引入。对离体的左心房,回肠标本和Langendorff心脏的药理研究以及对麻醉大鼠的体内循环研究显示,膦酸酯4具有钙拮抗作用。而2-(芳基乙烯基)苯并恶嗪酮引起明显的负性变力作用,化合物3e 对平滑肌组织表现出松弛作用,并显着增加了通过Langendorff心脏的冠状动脉血流量。
procedure for the thermo-promoted reactions of anthranil with different substrates was developed. The catalyst-free process affords various useful building blocks with good to moderate yields. This chemistry enables several step- and cost-effective approaches for biologically interesting molecules and provides an efficient platform for the investigation of untapped reactions at high temperature.