Two new taxane diterpenoids from the seeds of the Chinese yew, Taxus yunnanensis.
A new taxoid and a taxinine analogue were isolated from the seeds of the Chinese yew, Taxus yunnanensis. The structures were established as 13 alpha-acetoxy-5 alpha-(3'-dimethylamino-3'-phenyl)-propionyloxy-11(15-->1)-abeotaxa- 4(20),11-diene-9 alpha, 10 beta-diol and 2 alpha-acetoxy-5 alpha-cinnamoyloxy-9 alpha, 10 beta-dihydroxy-taxa- 4(20),11-diene-13-one on the basis of 1D, 2D NMR, and MS spectral analysis.
Shi
Q W
QW
Laboratory of Applied Bioorganic Chemistry, Division of Life Sciences, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumi-dori Amamiya, Aoba-ku, Sendai 981-8555, Japan. shi@biochem.tohoku.ac.jp
Oritani
T
T
Sugiyama
T
T
Murakami
R
R
Yamada
T
T
D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D012639:Seeds / Q000737:chemistry*; D013057:Spectrum Analysis; D014197:Trees / Q000196:embryology*
C426504:13alpha-acetoxy-5alpha-(3'-dimethylamino-3'-phenyl)-propionyloxy-11(15-1)-abeotaxa-4(20),11-diene-9alpha,10beta-diol; C426505:2alpha-acetoxy-5alpha-cinnamoyloxy-9alpha,10beta-dihydroxy-taxa- 4(20),11-diene-13-one; D004224:Diterpenes