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Main observation and conclusionrnA rare highly fused racemic merosesquiterpenoid,9-epi-verrubenzospirolactone (1),six new asteriscane-type sesquiterpenoids,sinuhumesins A-F (4-9),and two related known ones (10 and 11) were isolated from Hainan soft coral Sinularia humesi.Compound 1 was further separated by chiral HPLC resolution to one pair of enantiomers [(+)-1 and (-)-1],respectively.The full structures of the new compounds were unambiguously determined by extensive spectroscopic analysis,chemical computation approaches,modified Mosher\'s method and/or X-ray diffraction analysis,as well as comparison with previously reported data of related model compounds.