Abstract
Three new clovane-related sesquiterpenoids, rumphellclovanes C-E (1-3), and a new natural clovane, clovan-2,9-dione (4), were isolated from a gorgonian coral Rumphella antipathies. The structures of clovanes 1-4 were elucidated by spectroscopic methods and by comparison of the spectral data with those of related analogues. Rumphellclovane C (1) was proven to be the first clovane-type sesquiterpenoid containing an ε-lactone moiety. A plausible biosynthetic pathway between clovanes 1 and 2 was proposed. Clovane 4 displayed significant inhibitory effects on the generation of superoxide anion and the release of elastase by human neutrophils.
Original language | English |
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Pages (from-to) | 2740-2744 |
Number of pages | 5 |
Journal | Tetrahedron |
Volume | 69 |
Issue number | 13 |
DOIs | |
State | Published - 01 04 2013 |
Keywords
- Clovane
- Elastase
- Rumphella
- Rumphellclovane
- Superoxide anion