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首页> 外文期刊>Chemical and Pharmaceutical Bulletin >Crotocascarins I-K: Crotofolane-Type Diterpenoids, Crotocascarin gamma, Isocrotofolane Glucoside and Phenolic Glycoside from the Leaves of Croton cascarilloides
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Crotocascarins I-K: Crotofolane-Type Diterpenoids, Crotocascarin gamma, Isocrotofolane Glucoside and Phenolic Glycoside from the Leaves of Croton cascarilloides

机译：巴豆香豆素I-K：巴豆香豆素类叶子中的巴豆香烷型二萜类化合物，巴豆香素γ，异氟醚烷葡糖苷和苯酚糖苷

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摘要

From the 1-BuOH-soluble fraction of a methanol (MeOH) extract of the leaves of Croton cascarilloides, crotofolanes: crotocascarins I-K, nor-crotofolane: crotocascarin gamma, isocrotofolane glucoside and phenolic glycoside were isolated by a combination of various separation techniques. Their structures were elucidated mainly from the NMR spectroscopic evidence. The structure of crotocascarin K was first elucidated by spectroscopic analysis and then was confirmed by X-ray crystallographic analysis. Its absolute structure was finally determined by the modified Mosher's method. Isocrotofolane glucoside was found to possess a new skeleton, however, its absolute structure remains to be determined.
机译：通过各种分离技术的组合，从巴豆丁香叶的甲醇（MeOH）提取液的1-BuOH可溶性馏分中分离出巴豆香叶：crocacascarins I-K，去甲crotofolane：crocacascarinγ，异氟丁烷葡糖苷和酚类糖苷。主要从NMR光谱学证据阐明了它们的结构。首先通过光谱分析阐明了crocacascarin K的结构，然后通过X射线晶体学分析对其进行了确认。最终，其绝对结构通过改进的Mosher方法确定。发现异氟醚烷葡糖苷具有新的骨架，但是，其绝对结构仍有待确定。

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