作者:Lori A. Spangler、John S. Swenton
DOI:10.1039/c39860000828
日期:——
functionalized β-vinylacyl anion equivalent with benzocyclobutenedione monoacetal, followed by methyl-lithium addition, yields a tricyclic structure having the requisite stereochemistry for elaboration to tetracyclines, as confirmed by a single crystal X-ray structure determination.
如通过单晶X射线结构测定所证实的那样,使官能化的β-乙烯基乙酰基阴离子当量与苯并环丁二酮单缩醛反应,然后添加甲基锂,产生具有精制成四环素所必需的立体化学的三环结构。