title: A new sesquiterpene glycoside from Dendrobium nobile Lindl.
abstract: A new sesquiterpene glycoside with a picrotoxane-type aglycone has been isolated from the stems of Dendrobium nobile Lindl. Its structure was elucidated as 7,12-dihydroxy-5-hydroxymethyl-11-isopropyl-6-methyl-9-oxatricyclo[6.2.1.0(2,6)]undecan-10-one-15-O-beta-D-glucopyranoside on the basis of spectroscopic data and chemical methods.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Shu
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Zhang
authors.forename: Shun-Xing
authors.initials: SX
authors.lastname: Guo
mesh_terms: D031667:Dendrobium / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C498953:7,12-dihydroxy-5-hydroxymethyl-11-isopropyl-6-methyl-9-oxatricyclo(6.2.1.0(2,6))undecan-10-one-15-O-beta-D-glucopyranoside; D005960:Glucosides; D012717:Sesquiterpenes