Two novel meroterpenoids with a 6/10/5 tricyclic system containing a pyran-4-one ring from Arnebia euchroma

IF 1.5 4区化学 Q3 CHEMISTRY, ORGANIC

Tetrahedron Letters Pub Date : 2024-09-30 DOI:10.1016/j.tetlet.2024.155318

引用次数: 0

Abstract

Two novel meroterpenoids, arnebic acid A (1) and B (2) with a new 6/10/5 tricyclic system containing a pyran-4-one ring, were isolated from the roots of Arnebia euchroma. Through extensive spectroscopic analysis, single-crystal X-ray crystallography analysis and ECD calculation, the structures with absolute configurations of 1 and 2 were unequivocally elucidated. Additionally, the plausible biosynthetic pathways for compounds 1 and 2 were deduced.

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从欧鼠李中提取的含有吡喃-4-酮环的 6/10/5 三环系统的两种新型美拉特萜类化合物

从欧鼠李属植物的根部分离出了两种新的美拉特萜类化合物--欧鼠李酸 A (1) 和 B (2)，它们具有一个包含吡喃-4-酮环的新的 6/10/5 三环系统。通过大量的光谱分析、单晶 X 射线晶体学分析和 ECD 计算，明确地阐明了 1 和 2 的绝对构型结构。此外，还推导出了化合物 1 和 2 的合理生物合成途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tetrahedron Letters 化学-有机化学

CiteScore

3.50

自引率

5.60%

发文量

521

审稿时长

28 days

期刊介绍： Tetrahedron Letters provides maximum dissemination of outstanding developments in organic chemistry. The journal is published weekly and covers developments in techniques, structures, methods and conclusions in experimental and theoretical organic chemistry. Rapid publication of timely and significant research results enables researchers from all over the world to transmit quickly their new contributions to large, international audiences.