Qw. Shi et al., Three new taxane diterpenoids from seeds of the Chinese yew, Taxus yunnanensis and T-chinensis var. mairei, PLANTA MED, 65(8), 1999, pp. 767-770
Three new taxane diterpenoids were isolated from the seeds of the Chinese y
ew, Taxus yunnanensis Cheng et L. K. Fu and T. chinensis var. mairei Cheng
et L. K. Fu. The structures were established as 1 beta,10 beta-dihydroxy-9
alpha,13 alpha-diacetoxy-5 alpha-(3'-dimethylamino-3'-phenyl)-propionyloxy
1-diene(1),5 alpha-hydroxy-9 alpha,10 beta,13 alpha-triacetoxy-11(15-->1)ab
eotaxa-4(20),11-diene (2), and 5 alpha,13 alpha-dihydroxy-9 alpha,10 beta-d
iacetoxy-11(15-->1)abeotaxa-4(20),11-diene (3) on the basis of 1D, 2D NMR,
and mass spectral analysis.