title: Isolation and structures of guaianolides from Carpesium macrocephalum.
abstract: Two new guaianolides, 4alpha,10alpha-dihydroxy-1beta(H),5beta(H)-guai-11(13)-en-8alpha,12-olide (2) and 4beta,10beta-dihydroxy-5alpha(H)-1,11(13)-guaidien-8alpha,12-olide (3), from Carpesium macrocephalum were isolated, and their structures were elucidated on the basis of spectroscopic studies.
authors.affiliation: College of Pharmacy, Chungbuk National University, Cheongju 361-763, Korea.
authors.forename: Mi-Ran
authors.initials: MR
authors.lastname: Kim
authors.forename: Chang-Soo
authors.initials: CS
authors.lastname: Kim
authors.forename: Kyung-Hwa
authors.initials: KH
authors.lastname: Hwang
authors.forename: Il-Yeong
authors.initials: IY
authors.lastname: Park
authors.forename: Seoung-Soo
authors.initials: SS
authors.lastname: Hong
authors.forename: Jong-Keun
authors.initials: JK
authors.lastname: Son
authors.forename: Dong-Cheul
authors.initials: DC
authors.lastname: Moon
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D007723:Korea; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: C457213:4alpha,10alpha-dihydroxy-1beta(H),5beta(H)-guai-11(13)-en-8alpha,12-olide; C457214:4beta,10beta-dihydroxy-5alpha(H)-1,11(13)-guaidien-8alpha,12-olide; D012717:Sesquiterpenes