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Four chlorinated metabolites featuring briarane carbon skeletons have been isolated from the gorgonian coral Ellisella robusta, which was collected off the coast of southern Taiwan: two new natural products, robustolides D (1) and E (2), and two known metabolites, robustolides F (3) and G (4). The structures of metabolites 1–4 were determined by spectroscopic methods, using 1D and 2D NMR in particular...
Three new briarane-type diterpenoids, designated as robustolides A–C (1–3), were obtained from the female gorgonian coral Ellisella robusta. The structures of briaranes 1–3 were elucidated by the interpretation of spectral data analysis and the structure of 1 was further confirmed by a single-crystal X-ray diffraction analysis. Briaranes 1 and 2 were found to show weak activity against the bacteria...
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