Abstract

Four new 3,4-secocycloartane triterpenoids, pseudolactones A–D (1–4), were isolated from the ethanol extract of the cones of Pseudol arixamabilis. Their structures were established by extensive 1D- and 2D-NMR experiments. The cones of P. arixamabilis are enriched in the ring-expanded or cleaved cycloartane triterpenoids. This work provides new insight into cycloartane triterpenoids from the cones of P. arixamabilis.

Graphic Abstract

中文翻译：

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美洲假单胞锥中的3,4-二环戊烷三萜类化合物

摘要

四个新的3,4- secocycloartane三萜类化合物，pseudolactones A-d（1 - 4），是从的锥体的乙醇提取物中分离Pseudol arixamabilis。通过广泛的1D和2D-NMR实验确定了它们的结构。arixamabilis的视锥细胞富含环扩展或裂解的环烷三萜。这项工作提供了新的见解环烷三萜从锥体锥。

图形摘要