Condensed Emodin Derivatives and Their Applicability for the Synthesis of a Fused Heterocyclic Hypericin Derivative
作者:Mario Waser、Heinz Falk
DOI:10.1002/ejoc.200500829
日期:2006.3
on the bifunctionalization of emodin at C(6) and C(7) with respect to the synthesis of a new class of fused heterocyclic hypericin derivatives were undertaken. The synthesis of such complex anthraquinone derivatives is possible by applying a Marschalk-type reaction with emodin-6-carbaldehyde as the key step. The newly synthesized pyridazinone-fused hypericin derivative possesses a satisfying bathochromically
关于合成一类新的融合杂环金丝桃素衍生物的大黄素在 C(6) 和 C(7) 的双功能化进行了调查。以大黄素-6-甲醛为关键步骤的Marschalk型反应可以合成这种复杂的蒽醌衍生物。新合成的哒嗪酮融合金丝桃素衍生物具有令人满意的红移吸收最大值,使其成为进一步研究光动力疗法可能应用的有希望的候选者。此外,本文描述的大黄素双功能化策略为合成蒽醌衍生物提供了一条新途径,而这些衍生物很难通过其他方法获得。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)