Abstract

A new oleanane type triterpene characterized as 3α, 24-diacetoxy-12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using physical and spectroscopic methods. The compounds showed weak to moderate insecticidal activities against stored maize insect pests Sitophilus zeamais and Prostephanus truncatus.

中文翻译：

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Annona粘膜叶提取物对玉米Sitophilus zeamais和Truncatus Prostephanus的植物化学和杀虫活性

摘要

从Annona粘膜叶片提取物中分离出一种新的以3α为特征的齐墩烷型三萜，24-diacetoxy-12-oleanene （1）和已知的化合物2-10。使用物理和光谱方法完成了对它们的结构阐明。该化合物对储存的玉米害虫Sitophilus zeamais和Prostephanus truncatus的杀虫活性弱至中度。