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.
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
Qing-Wen
QW
Shi
Zuo-Ping
ZP
Li
Ding
D
Zhao
Ji-Shun
JS
Gu
Takayuki
T
Oritani
Hiromasa
H
Kiyota
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