Abstract

A new ingol diterpenoid, namely 3-de-O-acetyleuphornan R (1), along with two known analogues, euphornans E (2) and N (3) were isolated from the seeds of Euphorbia marginata Pursh. The structure of 1 was elucidated by extensive ¹H NMR, ¹³C NMR, HSQC, HMBC, and ¹H-¹H COSY, and HR-MS spectroscopic analyses.

中文翻译：

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从大戟种子中提取的一新ingol二萜类化合物

摘要

从Euphorbia marginata Pursh的种子中分离出一种新的 ingol 二萜类化合物，即 3-de- O - acetyleuphornan R ( 1 ) 以及两种已知的类似物 euphornans E ( 2 ) 和 N ( 3 )。1的结构通过广泛的¹ H NMR、¹³ C NMR、HSQC、HMBC 和¹ H- ¹ H COSY 以及 HR-MS 光谱分析得到阐明。