一枝蒿酮酸苄酯类衍生物的合成、体外抗流感病毒和单纯Ⅰ,Ⅱ型疱疹病毒活性研究

Synthesis of Rupestonic Acid Benzyl Ester Derivatives and in vitro Anti Influenza Virus and Herpes Simplex Type Ⅰ and Ⅱ Viruses

为了提高一枝蒿酮酸的生物活性,以一枝蒿酮酸和取代苄醇为原料.在偶联剂DCC/DMAP的作用下,合成了10种一枝蒿酮酸苄酯衍生物2a～2j,所合成的化合物均经过IR,1HNMR,ESI-MS等分析方法进行了表征,并对所合成的化合物2a～2j进行了初步的体外抗A,B型流感病毒和单纯Ⅰ,Ⅱ型疱疹病毒活性研究,结果表明:大部分化合物对A,B型流感病毒具有较强的抑制活性,其中化合物2e抑制A3,B型流感病毒的IC50值分别为5.5,5.5μmol/L,化合物2i抑制A型流感病毒IC50值为:7.8μmol/L,化合物2e和2i可作为抗流感病毒的先导化合物;大部分化合物在0.1μg/mL浓度下对Ⅰ,Ⅱ型疱疹病毒具有显著的抑制活性.

To improve rupestonic acid biological activities, ten rupestonic acid benzyl ester derivatives were synthesized in the presence of DCC/DMAP with the rupestonic acid and substituted benzyl alcohol as starting materials. The synthesized compounds 2a-2j were confirmed by the methods of IR, ^1H NMR, ESI-MS and preliminarily assayed in vitro against influenza viruses A3, B and herpes simplex virus I （HSV-I）, herpes simplex virus II （HSV-II）. The results showed that most of the synthesized compounds had distinct inhibition against influenza viruses, 2e exhibited in vitro inhibitory activity against both influenza A3 and B viruses with IC50 values of 5.5, 5.5 μmol/L, respectively, and 2i showed higher activity against influenza A virus with an IC50 value of 7.8 μmol/L. Therefore, compounds 2e, 2i can be as lead compounds for anti-flu agent. Most of the compounds showed higher inhibition against HSV-I and HSV-II viruses at 0.1 μg/mL concentration.