Asterolaurins G – J, New Xenicane Diterpenoids from the Taiwanese Soft Coral Asterospicularia laurae

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Four new xenicane diterpenoids, asterolaurins G–J (1–4, resp.) have been isolated from the Taiwanese soft coral Asterospicularia laurae. Their structures were determined by extensive spectroscopic analyses (UV, CD, IR, 1H‐ and 13C‐NMR, 1H,1H‐COSY, HMBC, and NOESY). The cytotoxic activities of all compounds were evaluated.