title: Two new guaianolides and a new daucene derivative from Sinodielsia yunnanensis.
abstract: From the roots and rhizomes of Sinodielsia yunnanensis, three new sesquiterpenes were isolated and their structures were established as 5alpha,6beta- H-1(10),3,7(11)-guaiatrien-12,6alpha-olide ( 1), 5alpha,6beta,7beta- H-1(10),3-guaiadien-12,6alpha-olide ( 2) and 5beta-hydroxy-10alpha- O-angeloyl-3-oxodauc-8-ene ( 3) by means of spectroscopic analyses and single-crystal X-ray experiment (for compound 1).
authors.affiliation: Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People's Republic of China.
authors.forename: Yun-Sen
authors.initials: YS
authors.lastname: Li
authors.forename: Ji-Jun
authors.initials: JJ
authors.lastname: Chen
authors.forename: Hui
authors.initials: H
authors.lastname: Zhou
authors.forename: Shi-De
authors.initials: SD
authors.lastname: Luo
authors.forename: Hui-Ying
authors.initials: HY
authors.lastname: Wang
authors.forename: Da-Yuan
authors.initials: DY
authors.lastname: Zhu
mesh_terms: D019661:Apiaceae; D018360:Crystallography, X-Ray; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D027343:Rhizome; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry*
chemical_list: D010936:Plant Extracts; D045789:Sesquiterpenes, Guaiane