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Chemical examination of the gorgonian coral Junceella fragilis resulted in the isolation of four pairs of acetyl isomers belonging to briarane diterpenoids, including five new compounds. Their structures were determined on the basis of extensive spectroscopic (IR, MS, NMR, and single‐crystal X‐ray diffraction) analysis in association with the chemical conversion. Each pair of isomers featured by dynamical...
Chemical investigation of the gorgonian coral Junceella fragilis resulted in the isolation of a new norditerpenoid fragilolide A (1), sixteen new briarane diterpenoids fragilolides B-Q (2–17), together with frajunolides H and N, and three known norcembranoids scabrolide D, sinuleptolide and 5-epi-sinuleptolide. The structures of new compounds were determined on the basis of extensive spectroscopic...
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