The semi-synthesis of novel andrographolide analogues and anti-influenza virus activity evaluation of their derivatives
作者:Lei Yuan、Chunfeng Zhang、Hongxin Sun、Qingyin Liu、Jian Huang、Lei Sheng、Bin Lin、Jinhui Wang、Lixia Chen
DOI:10.1016/j.bmcl.2015.12.100
日期:2016.2
novel andrographolide analogues with the structural motif of Δ8,17-alkene exo-to-endo isomerization, AI78 and AI89, were semi-synthesized firstly. Two series of derivatives were designed and synthesized based on the synthetic pathway (including series I: olefin isomerizing to endocyclic Δ8,9 and series II: olefin isomerizing to endocyclic Δ7,8). The anti-influenza virus activity in vitro for all derivatives
与Δ的结构基序两种新型穿心莲内酯类似物8,17 -烯烃外-到-内型异构化,AI78和AI89,是半合成的,首先。根据合成途径设计和合成了两个系列的衍生物(包括系列I:烯烃异构化为内环Δ8,9和系列II:烯烃异构化为内环Δ7,8)。对所有衍生物的体外抗流感病毒活性进行了评估。在合成的化合物中,化合物38具有苄基氨基基团的苯丙胺对H3N2的效力最大,约比中国临床使用的穿心莲内酯类似物联苯哌啶的效力高1.5倍。金刚烷衍生物43的毒性最低,比Lianbizhi的TC 50和TI值更高。所述合成的类似物的结构-活性关系研究表明,内环Δ 7,8 -双键优选的抗病毒的作用。此外,在C-17处引入连接至刚性骨架的脂肪氨基对于活性是有益的。