D. Viterbo et al., 1-HYDROXYBACCATIN-I, C32H44O14, AND 2-DEACETOXYDECINNAMOYLTAXININE-J,C28H40O9, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1687-1690
The title compounds are diterpenoids isolated from the Himalayan yew (
Taxus wallichiana Zucc.). The crystal structures allow us to rationali
ze some peculiar features of the NMR data of the taxane 4(20)-epoxides
. Conformational differences between epoxide, olefin-type and oxetane-
type compounds like paclitaxel are summarized.