title: Stilbenoids from Stemona japonica.
abstract: Three new dihydrostilbenes, stilbostemins J-L (1-3), and a new dihydrophenanthrene, stemanthrene F (4), were isolated from the roots of Stemona japonica together with two known bibenzyls, 3,5-dihydroxy-4-methylbibenzyl (5) and 3,5-dihydroxy-2'-methoxy-4-methylbibenzyl (6). Their structures were elucidated by spectroscopic analyses. Compounds 3-6 exhibited strong antibacterial activities against Staphylococcus aureus and Staphylococcus epidermidis.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, SIBS, Chinese Academy of Sciences, 555 Zu-Chong-Zhi Road, Zhangjiang Hightech Park, Shanghai 201203, People's Republic of China.
authors.forename: Xin-Zhou
authors.initials: XZ
authors.lastname: Yang
authors.forename: Chun-Ping
authors.initials: CP
authors.lastname: Tang
authors.forename: Yang
authors.initials: Y
authors.lastname: Ye
mesh_terms: D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D041901:Stemonaceae / Q000737:chemistry*; D013267:Stilbenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D013267:Stilbenes