The chemical and chemo‐ecological studies on Weizhou nudibranch Glossodoris atromarginata. (15th November 2019)

• Record Type: Journal Article
• Authors: Li, Xiao‐Lu; Li, Song‐Wei; Yao, Li‐Gong; Mollo, Ernesto; Gavagnin, Margherita; Guo, Yue‐Wei
• Other Names: Saurí Josep guestEditor.; Sun Han guestEditor.
• Is Part Of: Magnetic resonance in chemistry. Volume 59:Number 5(2021)
• Page Start: 554
• Page End: 560
• Publication Date: 2019-11-15
• Subjects: absolute configuration -- Glossodoris atromarginata -- nudibranch -- spongian‐type diterpene -- TDDFT‐ECD; Nuclear magnetic resonance spectroscopy -- Periodicals; Chemistry, Organic -- Periodicals; Magnetic resonance -- Periodicals; 538.36
• DOI: 10.1002/mrc.4949
• Languages: English
• ISSNs: 0749-1581

Abstract

Abstract: A detailed chemical investigation of the nudibranch Glossodoris atromarginata collected from Weizhou Island, South China Sea, yielded a new spongian‐type diterpene 1, together with the four known‐related compounds 2 –5 . The structure of the new compound 1 was elucidated by the detailed spectroscopic analysis, the comparison of the spectroscopic data with the known diterpene isoagatholactone, and the 13 C chemical shift calculation. In addition, evidence for the absolute stereochemistry of the known compound 2 was, for the first time, provided by the application of time‐dependent density functional theory electronic circular dichroism calculation. Abstract : A detailed chemical investigation of the nudibranch Glossodoris atromarginata collected from Weizhou Island, South China Sea, yielded a new spongian‐type diterpene 1, together with four known related compounds 2–5. The structure of the new compound 1 was elucidated by detailed spectroscopic analysis, the comparison of the spectroscopic data with the known diterpene isoagatholactone and the 13C chemical shift calculation. In addition, evidence for the absolute stereochemistry of the known compound 2 was, for the first time, provided by the application of time‐dependent density functional theory electronic circular dichroism calculation.