to euphornin, three new toxic substances (euphornins A, B and C) have been isolated from the plant L., and their absolute stereostructures also been elucidated on the basis of their spectral data and some chemical evidence together with an X-ray crystallographic analysis of the p-bromobenzoate derived from euphornin. Furthermore, their conformations have also been discussed.
除了
紫杉醇之外,还从植物L中分离出了三种新的有毒物质(
紫杉醇A,B和C),并根据其光谱数据和一些
化学证据以及X射线对它们的绝对立体结构进行了阐明。衍生自
紫杉醇的对
溴苯甲酸酯的晶体学分析。此外,还讨论了它们的构象。