Two new limonoid-type triterpenoids, named 12-o-ethyl-1-deacetylnimbolinin B and 1-o-tigloyl-1-o-debenzoylohchinal, have been isolated from the fruit of Melia toosendan Sieb. et Zucc. Their structures were elucidated by spectral methods, including 2D-NMR spectra.

中文翻译：

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Melia toosendan的两种新柠檬苦素

从Melia toosendan Sieb的果实中分离出了两个新的柠檬苦素型三萜，分别名为12-o-乙基-1-deacetylnimbolinin B和1-o- tigloyl-1-o-debenzoylohchinal。et Zucc。通过包括2D-NMR光谱在内的光谱方法阐明了它们的结构。