Phenolic Diterpenoid Derivatives as Anti-Influenza A Virus Agents
摘要:
A series of diterpenoid derivatives based on podocarpic acid were synthesized and evaluated as anti influenza A virus agents. Several of the novel podocarpic acid derivatives exhibited nanomolar activities against an HINI influenza A virus (A/Puerto Rico/8/34) that was resistant to two anti-influenza drugs, oseltamivir and amantadine. This class of compounds inhibits the influenza virus by targeting the viral hemagglutinin-mediated membrane fusion. These results indicated that podocarpic acid derivatives may serve as potential drug candidates to fight drug-resistant influenza A virus infections.
Discovery and development of dimeric podocarpic acid leads as potent agonists of liver X receptor with HDL cholesterol raising activity in mice and hamsters
作者:Sheo B. Singh、John G. Ondeyka、Weiguo Liu、Steve Chen、Tom S. Chen、Xiaohua Li、Aileen Bouffard、James Dropinski、A. Brian Jones、Sherrie McCormick、Nancy Hayes、Jianhua Wang、Neelam Sharma、Karen MacNaul、Melba Hernandez、Yu-Sheng Chao、Joanne Baffic、My-Hanh Lam、Charlotte Burton、Carl P. Sparrow、John G. Menke
DOI:10.1016/j.bmcl.2005.03.100
日期:2005.6
identified podocarpicacid anhydride as a 1nM agonist of LXRalpha and beta receptors. Functionally this agonist was over 8-10-fold better activator of LXR receptors compared to one of the natural ligands, 22-(R)-hydroxy cholesterol, in HEK-293 cells. An imide analog increased the level of HDL by 26%, decreased LDL by 10.6%, and increased triglyceride by 51% in hamsters. Discovery, synthesis, SAR and