来自科特迪瓦的茎精油中的两种新的桉叶烷-4α-醇环氧。
Two new eudesman-4α-ol epoxides from the stem essential oil of from Côte d'Ivoire.
机构信息
Laboratoire de Chimie Organique Biologique, UFR-SSMT, Université Félix Houphouët-Boigny-Abidjan , Abidjan , Côte d'Ivoire.
Laboratoire de Chimie BioOrganique et de Substances Naturelles Université Nangui Abrogoua , Abidjan , Côte d'Ivoire.
出版信息
Nat Prod Res. 2020 Oct;34(19):2765-2771. doi: 10.1080/14786419.2019.1586701. Epub 2019 Mar 25.
The investigation of the stem essential oil of (DC.) Sch. Bip. ex Oliv. (Asteraceae) from Côte d'Ivoire was carried out, using a combination of chromatographic (GC-RI, CC, pc-GC) and spectroscopic (GC-MS, C NMR) techniques. This study led to the identification of fifty constituents of which two new natural compounds 7β,11β-epoxy-eudesman-4α-ol and 7α,11α-epoxy-eudesman-4α-ol. Their structures were elucidated by 1 D and 2 D NMR spectroscopy after pc-GC purifying. Finally, 98.9% of the whole composition of the oil was identified with a high amount of 2,5-dimethoxy--cymene (78.9%). The other significant components were α-humulene (6.2%), ()-β-caryophyllene (1.7%), thymyl methyl oxide (1.7%), α-phellandrene (1.5%), -cymene (1.2%), (3αH,4βH,6αH,1αMe)-1,6-epoxy-3-hydroxycarvotanacetone angelic acid ester (1.1%) and 10--γ-eudesmol (1.0%).
对来自科特迪瓦的（DC.）Sch. Bip. ex Oliv.（菊科）的茎精油进行了研究，采用了色谱（GC-RI、CC、pc-GC）和光谱（GC-MS、C NMR）技术相结合的方法。这项研究鉴定了五十种成分，其中两种新的天然化合物为 7β,11β-环氧桉烷-4α-醇和 7α,11α-环氧桉烷-4α-醇。通过 pc-GC 净化后，通过 1D 和 2D NMR 光谱对其结构进行了阐明。最后，通过高含量的 2,5-二甲氧基-对伞花烃（78.9%）鉴定出该油的整个成分的 98.9%。其他重要成分包括α-葎草烯（6.2%）、（）-β-石竹烯（1.7%）、百里酚甲醚（1.7%）、α-水芹烯（1.5%）、-对伞花烃（1.2%）、（3αH,4βH,6αH,1αMe）-1,6-环氧-3-羟基香茅烷酸酯（1.1%）和 10--γ-桉叶醇（1.0%）。
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