Semisynthesis of Dolabellane Diterpenes: Oxygenated Analogues with Increased Activity against Zika and Chikungunya Viruses
作者:Fabián Amaya García、Claudio Cirne-Santos、Caroline de Souza Barros、Ana Maria Pinto、Maria Leonisa Sanchez Nunez、Valeria Laneuville Teixeira、Jackson A. L. C. Resende、Freddy A. Ramos、Izabel C. N. P. Paixão、Leonardo Castellanos
DOI:10.1021/acs.jnatprod.1c00199
日期:2021.4.23
Brown algae and soft corals represent the main marine sources of dolabellane diterpenes. The antiviral activity of dolabellanes has been studied for those isolated from algae, whereas dolabellanes isolated from soft corals have been barely studied. In this work, a collection of dolabellane diterpenes consisting of five natural and 21 semisynthetic derivatives was constructed, and their antiviral activities
褐藻和软珊瑚是多拉拉内二萜的主要海洋来源。已经研究了从藻类中分离出来的多拉标签内的抗病毒活性,而几乎没有研究过从软珊瑚中分离出的多拉标签。在这项工作中,构建了由 5 种天然衍生物和 21 种半合成衍生物组成的多拉拉内二萜的集合,并测试了它们对寨卡 (ZIKV) 和基孔肯雅 (CHIKV) 病毒的抗病毒活性。Dolabellatrienone ( 1 ) and (1 R ,7 R ,8 R ,11 S )-7,8-epoxy-13-keto-dolabella-3,12(18)-diene ( 2 ), 从Eunicea 中分离通过烯丙基氧化、还原、酸催化的环氧化物开环和乙酰化等反应,采用软珊瑚属获得 21 种多标签烷和多拉烷二萜。所有化合物均通过一维和二维核磁共振、质谱和 X 射线衍射实验的组合进行鉴定。测试对Vero细胞的细胞毒剂和对ZIKV和CHIKV的抗病毒活性以计算半最大有效浓度(EC