Journal
JOURNAL OF NATURAL PRODUCTS
Volume 74, Issue 9, Pages 1902-1907Publisher
AMER CHEMICAL SOC
DOI: 10.1021/np200342k
Keywords
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Funding
- S & T Major Project [2009ZX09301-001]
- National Marine 863 Project [2011AA090071-2]
- NSFC [30730108, 21021063, 21072204]
- CAS [KSX2-YW-R-18]
- STCSM [10540702900]
- MIUR
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Four diterpenes, tritoniopsins A-D (1-4), have been isolated from the South China Sea nudibranch Tritoniopsis elegans and its prey, the soft coral Cladiella krempfi. They display an unprecedented pyran ring in the cladiellane framework, thus representing a novel cladiellane-based diterpene family. Their structures have been mainly characterized by NMR and mass spectrometric techniques, whereas the relative configuration of compound 1 was secured by X-ray analysis. Antiproliferative assays on tumor and nontumor cell lines have been carried out for the main metabolite, tritoniopsin B (2).
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