作者:Karsten Krohn、Jürgen Vitz
DOI:10.1002/ejoc.200300451
日期:2004.1
Two approaches are described for the preparation of 2-(1′,3′-dioxoalkyl)-substituted 1-hydroxyanthraquinones 10a−d and 20a−c, which were cyclized in a biomimetic-type reaction to the anthra[1,2-b]pyran skeletons 11a−d and 21a−c of the heydamycin- or pluramycin-type antibiotics. Cleavage of the methyl ethers afforded the natural product premithramycinone H (2). The simple derivative 11b showed inhibition
描述了两种制备 2-(1',3'-二氧代烷基)-取代的 1-羟基蒽醌 10a-d 和 20a-c 的方法,它们在仿生型反应中环化为炭疽[1,2-b ]吡喃骨架 11a-d 和 21a-c 喜霉素或多霉素类抗生素。甲基醚的裂解提供了天然产物 premitthramycinone H (2)。简单的衍生物 11b 在微摩尔浓度下显示出对 A431 细胞系的抑制作用。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)