title: Triterpenoids from the stems of Myricaria paniculata.
abstract: Two new pentacyclic triterpenoids myricarin A and B (1 and 2) have been isolated from the stems of Myricaria paniculata, together with seven known compounds, myriconal, 28-hydroxy-14-taraxeren-3-one, epi-friedelanol, beta-sitosterol, 4-methyl stigmast-7-en-3-ol, 12-hentriacontanol and 1-triacontanol. Their structures have been established by chemical and spectroscopic methods. Cytotoxic activities of 1 and 2 have been evaluated against several different cell lines.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, and Peking Union Medical College, Beijing 100050, China.
authors.forename: Shuai
authors.initials: S
authors.lastname: Li
authors.forename: Sheng-Jun
authors.initials: SJ
authors.lastname: Dai
authors.forename: Ruo-Yun
authors.initials: RY
authors.lastname: Chen
authors.forename: De-Quan
authors.initials: DQ
authors.lastname: Yu
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D018547:Plant Stems / Q000737:chemistry*; D032363:Tamaricaceae / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes; C497549:myricarin A; C497550:myricarin B