Novel heterocycles.<b>5</b>. Lactone fused quinazolines
作者:Gary M. Coppola、Michael J. Shapiro
DOI:10.1002/jhet.5570170602
日期:1980.9
synthesized. The six-membered lactone 7 was prepared by the interaction of ethyl pyruvate with hydroxyethylanthranilamide 11, followed by hydrolysis and cyclization using 1-methyl-2-choropyridinium iodide. The corresponding seven-membered lactone 10 was prepared by reaction of 11 with ethyl propiolate, followed by hydrolysis and cyclization as above. Quinazolines possessing functionalities capable of
合成了喹唑啉稠合的内酯。六元内酯7的制备方法是丙酮酸乙酯与羟乙基蒽酰胺11相互作用,然后使用碘化1-甲基-2-吡啶鎓鎓进行水解和环化。通过使11与丙酸乙酯反应,然后如上所述进行水解和环化,来制备相应的七元内酯10。在甲醇钠存在下,将具有能够形成六元或七元内酯功能的喹唑啉在二甲苯中环化。仅形成六元内酯14。