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Uncommon Polyoxygenated Sesquiterpenoids from South China Sea Soft Coral Lemnalia flava.
- Source :
-
The Journal of organic chemistry [J Org Chem] 2019 Mar 15; Vol. 84 (6), pp. 3083-3092. Date of Electronic Publication: 2019 Mar 01. - Publication Year :
- 2019
-
Abstract
- A detailed chemical investigation of the Chinese soft coral Lemnalia flava yielded four new nardosinane-type sesquiterpenoids (1-4), one new neolemnane-type sesquiterpenoid (5), and one new sesquiterpenoid with an uncommon 6/9 fused bicyclic skeleton (6), together with two known related compounds (7 and 8). The structures and absolute configurations of 1-8 were determined on the basis of extensive spectroscopic data analyses, X-ray diffraction analysis, chemical reactions, and computer-assisted structural elucidation including <superscript>13</superscript> C NMR data calculation, residual dipolar coupling based NMR analysis, and time-dependent density functional theoryelectronic circular dichroism calculation. Plausible biogenetic pathways of two uncommon sesquiterpenoids (4 and 6) were proposed.
Details
- Language :
- English
- ISSN :
- 1520-6904
- Volume :
- 84
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- The Journal of organic chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 30762361
- Full Text :
- https://doi.org/10.1021/acs.joc.8b02912