Abstract

A picrotoxane-type sesquiterpene, dendroterpene E (1), together with five benzene derivatives (2–6), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis and X-ray diffraction analysis. Compound 1 was a new picrotoxane-type sesquiterpene with a C-9/C-1/O/C-11 oxetane ring, which was first encountered in this type of compounds. Compounds 1–3 exhibited inhibitory activities against α-glycosidase.

中文翻译：

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铁皮石D的新吡咯烷烷型倍半萜

摘要

甲picrotoxane型倍半萜，dendroterpene E（1），加上5的苯衍生物（2-6），分离从所述茎钗石斛石斛。通过光谱分析和X射线衍射分析阐明了它们的结构。化合物1是一种新的具有C-9 / C-1 / O / C-11氧杂环丁烷环的吡咯烷烷型倍半萜，在此类化合物中首次遇到。化合物1-3对α-糖苷酶表现出抑制活性。