The present disclosure relates to patentiflorin A analogs that are useful as antivirals, such as anti-HIV, anti-coronaviral, anti-Ebola viral, and anti-influenza viral agents and methods of use thereof.
Synthesis and antiproliferative activity of derivatives of the phyllanthusmin class of arylnaphthalene lignan lactones
作者:John L. Woodard、Andrew C. Huntsman、Pratiq A. Patel、Hee-Byung Chai、Ragu Kanagasabai、Soumendrakrishna Karmahapatra、Alexandria N. Young、Yulin Ren、Malcolm S. Cole、Denisse Herrera、Jack C. Yalowich、A. Douglas Kinghorn、Joanna E. Burdette、James R. Fuchs
DOI:10.1016/j.bmc.2018.03.033
日期:2018.5
A series of arylnaphthalenelignan lactones based on the structure of the phyllanthusmins, a class of potent natural products possessing diphyllin as the aglycone, has been synthesized and screened for activity against multiple cancer cell lines. SAR exploration was performed on both the carbohydrate and lactone moieties of this structural class. These studies have revealed the importance of functionalization
已经合成了一系列基于 phyllanthusmins 结构的芳基萘木脂素内酯,这是一类以二叶素为苷元的有效天然产物,已被合成并筛选出对多种癌细胞系的活性。对这种结构类别的碳水化合物和内酯部分进行了 SAR 探索。这些研究揭示了用乙酰化和甲基化类似物对碳水化合物羟基进行官能化的重要性,这些类似物显示出相对于未取代糖部分的效力增加。此外,已经通过内酯环的还原和选择性再氧化证明了对 C 环内酯的存在和位置的要求。本研究中最有效的化合物显示出 IC 50在 HT-29 测定中的值为 18 nM,其他几个值在 50 到 200 nM 之间。为了阐明它们的潜在作用机制,根据先前关于结构相似化合物的报告,检查了最有效化合物的 DNA 拓扑异构酶 IIa 抑制活性,但似乎对它们的抗增殖作用没有显着贡献。
Potent Inhibitor of Drug-Resistant HIV-1 Strains Identified from the Medicinal Plant <i>Justicia gendarussa</i>
作者:Hong-Jie Zhang、Emily Rumschlag-Booms、Yi-Fu Guan、Dong-Ying Wang、Kang-Lun Liu、Wan-Fei Li、Van H. Nguyen、Nguyen M. Cuong、Djaja D. Soejarto、Harry H. S. Fong、Lijun Rong
DOI:10.1021/acs.jnatprod.7b00004
日期:2017.6.23
Justiciagendarussa, a medicinalplant collected in Vietnam, was identified as a potent anti-HIV-1 active lead from the evaluation of over 4500 plant extracts. Bioassay-guided separation of the extracts of the stems and roots of this plant led to the isolation of an anti-HIV arylnaphthalene lignan (ANL) glycoside, patentiflorin A (1). Evaluation of the compound against both the M- and T-tropic HIV-1
Design, synthesis and biological evaluation of novel glycosylated diphyllin derivatives as topoisomerase II inhibitors
作者:Da-Kuo Shi、Wei Zhang、Ning Ding、Ming Li、Ying-Xia Li
DOI:10.1016/j.ejmech.2011.11.011
日期:2012.1
Recently, a novel glycosylated diphyllin derivative 11 which exhibiting potent anticancer activity by targeting topoisomerase IIα was reported by our group. In order to provide more molecules for structure-activity relationship (SAR) studies, 12 new glycosylated diphyllin analogs have been designed, synthesized, and evaluated for their biological activities. The SAR analysis revealed that (i) the sugar
Synthesis and Bioevaluation of Diphyllin Glycosides as Novel Anticancer Agents
作者:Yu Zhao、Chunyan Ni、Yuting Zhang、Li Zhu
DOI:10.1002/ardp.201200035
日期:2012.8
A series of diphyllin glycosides were synthesized from diphyllin by phase transfer catalysis glycosylation, deprotection, and etherification, and the structures were established by 1H NMR, 13C NMR, and HRMS. These glycosides were evaluated for their in vitro cytotoxicity against HCT‐116, A549, and A549T cancer cell lines by MTT assay, and most of them were cytotoxic at submicromolar concentrations