title: Structure and anti-HIV activity of micrandilactones B and C, new nortriterpenoids possessing a unique skeleton from Schisandra micrantha.
abstract: Two new highly oxygenated nortriterpenoids with a unique norcycloartane skeleton, micrandilactones B and C, were isolated from Schisandra micrantha; micrandilactone C exhibited an EC50 value of 7.71 microg/mL (SI > 25.94) against HIV-1 replication with minimal cytotoxicity, and the potent anti-HIV-1 activity and unique structural features of make it a promising lead for therapeutic development of a new generation of anti-HIV drug.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, P. R. China.
authors.forename: Rong-Tao
authors.initials: RT
authors.lastname: Li
authors.forename: Quan-Bin
authors.initials: QB
authors.lastname: Han
authors.forename: Yong-Tang
authors.initials: YT
authors.lastname: Zheng
authors.forename: Rui-Rui
authors.initials: RR
authors.lastname: Wang
authors.forename: Liu-Meng
authors.initials: LM
authors.lastname: Yang
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Su-Qin
authors.initials: SQ
authors.lastname: Sang
authors.forename: Qi-Tai
authors.initials: QT
authors.lastname: Zheng
authors.forename: Qin-Shi
authors.initials: QS
authors.lastname: Zhao
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
mesh_terms: D000818:Animals; D019380:Anti-HIV Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D018360:Crystallography, X-Ray; D015497:HIV-1 / Q000187:drug effects* / Q000502:physiology; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D032141:Schisandra / Q000737:chemistry*; D013329:Structure-Activity Relationship; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D014779:Virus Replication / Q000187:drug effects
chemical_list: D019380:Anti-HIV Agents; D014315:Triterpenes; C517927:micrandilactone B; C517928:micrandilactone C