Sesquiterpenoids from the liverwort Porella acutifolia subsp. Tosana
作者:Masao Toyota、Akiko Ueda、Yoshinori Asakawa
DOI:10.1016/0031-9422(91)83728-4
日期:1991.1
Abstract Four new germacranolides, two new guaianolides and a new pinguisane-type sesquiterpene alcohol have been isolated from the pungent liverwort Porella acutifolia subsp. tosana , together with the previously known sesquiterpenoids, 4α,5β-epoxy-8- epi -inunolide and porelladiolide and diterpene dialdehyde, perrottetianal. Their structures were characterized by spectral data and chemical transformation
摘要 从具有刺激性的地草Porella acutifolia subsp. 中分离出4 个新的germacranolides、2 个新的愈创木酚内酯和一个新的pinguisane 型倍半萜醇。tosana ,连同先前已知的倍半萜类化合物,4α,5β-epoxy-8-epi-inunolide 和 porelladiolide 和二萜二醛,perrottetianal。它们的结构由光谱数据和化学转化表征。该物种的辣味是由于存在 1α- 和 1β-hydroperoxy-4α,5β-epoxygermacra-10(14),11(13)-dien-12,8-olides。Porella acutifolia subsp。tosana 被归类为 Porellaceae 的化学型 IV (pinguisane-germacrane/guaiane-sacculatane-type)。