title: Dantaxusins C and D, two novel taxoids from Taxus yunnanensis.
abstract: Two new taxane diterpenes, dantaxusin C (1) and dantaxusin D (2), were isolated from an ethanol extract of the aerial parts of Taxus yunnanensis along with 14 known taxoids. All structures were established on the basis of 1D and 2D NMR and HREIMS spectroscopic methods.
authors.affiliation: Department of Interdisciplinary Studies of Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan.
authors.forename: Youichi
authors.initials: Y
authors.lastname: Shinozaki
authors.forename: Narihiko
authors.initials: N
authors.lastname: Fukamiya
authors.forename: Masao
authors.initials: M
authors.lastname: Fukushima
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Okano
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Nehira
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Tagahara
authors.forename: Shun-Xiang
authors.initials: SX
authors.lastname: Zhang
authors.forename: De-Cheng
authors.initials: DC
authors.lastname: Zhang
authors.forename: Kuo-Hsiung
authors.initials: KH
authors.lastname: Lee
mesh_terms: D002681:China; D002851:Chromatography, High Pressure Liquid; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D017239:Paclitaxel / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D018520:Plant Shoots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D043823:Taxoids; D020946:Taxus / Q000737:chemistry*
chemical_list: D043823:Taxoids; C455659:dantaxusin C; C455660:dantaxusin D; D017239:Paclitaxel