New 2(3-->20)abeotaxane and 3,11-cyclotaxane from needles of Taxus cuspidata.
Two new taxoid metabolites, 2alpha,7beta,10beta-triacetoxy-5alpha,13alpha-dihydroxy-2(3-->20)abeotaxa-4(20),11-dien-9-one (1) and 2alpha-acetoxy-5alpha-cinnamoyloxy-9alpha,10beta-dihydroxy-3,11-cyclotax-4(20)-en-13-one (2), were isolated from the methanol extract of needles of the Japanese yew, Taxus cuspidata.
Shi
Qing-Wen
QW
Department of Natural Product Chemistry, School of Pharmaceutical Sciences, Hebei Medicinal University, 336 Zhongshan East Road, 050017, Shijiazhuang, Hebei, Province, People's Republic of China. qing_wen@hotmail.com
Li
Zuo-Ping
ZP
Zhao
Ding
D
Gu
Ji-Shun
JS
Oritani
Takayuki
T
Kiyota
Hiromasa
H
D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009904:Optical Rotation; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D043823:Taxoids / Q000737:chemistry / Q000302:isolation & purification*; D020946:Taxus / Q000737:chemistry*
D010936:Plant Extracts; D043823:Taxoids