| 摘要: | Five Taxane derivatives were isolated from Taxus mairei. Their structures were detetmined by spectroscopic methods and their physical constants were identical with the literature values., These are Taxa-4(20), 11.diene.2α, 5α, 7β-tetrol-5α, 7β, 10β-triacetate-2α-α-methylbutyrate(I); Taxa-4(20), 11.diene.2α, 5α, 9α, 10β, 13β-pentol-2α, 9α, 10β, 3α-tetraacetate.5α_cinnamate(I I); Taxa-4(20), 11-diene-5α, 7β, 9α, 10β, 13α-pentol-pentaacetate(III); 7β-acettate-O-taxinine A(IV), 1β-hydroxy-baccatin-I(V). |
