Total Syntheses of (−)-Spirooliganones A and B and Their Diastereoisomers: Absolute Stereochemistry and Inhibitory Activity against Coxsackie Virus B3
作者:Nan Zhao、Xiaodong Ren、Jinhong Ren、Haining Lü、Shuanggang Ma、Rongmei Gao、Yuhuan Li、Song Xu、Li Li、Shishan Yu
DOI:10.1021/acs.orglett.5b01419
日期:2015.6.19
assembled by intermolecular [4 + 2] hetero-Diels–Alder cycloaddition between (−)-sabinene and o-quinone methide, which was generated from the corresponding o-hydroxybenzyl alcohol. After establishing the absolute configuration, the inhibitory activities of spirooliganones 1–8 against Coxsackie virus B3 were evaluated, and the primary structure–activity relationships were analyzed. Compound 3 was the most potent
为了研究结构的生物活性上的影响,spirooliganones A和B以及它们的对映异构体6(1 - 8)在11个步骤合成。关键的苯并吡喃核是由(-)- bin烯和邻-醌甲基化物之间的分子间[4 + 2]杂-Diels -Alder环加成反应组装而成的,后者是由相应的邻-羟基苄醇生成的。建立绝对构型,spirooliganones的抑制活性后1 - 8针对手足口病毒B3进行了评价,并且初级结构-活性关系进行了分析。化合物3是最有效的化合物,IC 50为0.41μM。