四氢氧杂蒽酮类天然产物的霉菌毒素具有许多有趣的生物学特性。在这篇完整的论文中,我们向此类化合物的一些成员介绍了我们的合成策略,即 blennolides A 和 C。我们公开了衍生自多米诺氧杂-迈克尔-羟醛缩合的各种氧杂蒽酮官能化的范围和局限性,并追求这些氧杂蒽酮的二聚化。此外,还获得了 blennolide C 的第一个晶体结构。
New strategies for the synthesis and functionalization of tetrahydroxanthones
作者:Penelope A. Turner、Samiullah、Joanna V. Geden、Alexander White、Guy J. Clarkson、Michael Shipman
DOI:10.1016/j.tet.2015.10.051
日期:2015.12
Two strategies for the functionalization of simple tetrahydroxanthones (THX) on either of the carbocyclicrings are reported. By application of palladium catalysis, concomitant assembly of this heterocyclic scaffold with controlled introduction of substituents on the aromatic ring at C-5, C-6 or C-7 can be achieved. Variation in the nature of the added carbon fragment (aryl, alkenyl and alkynyl) is