Terpenoidal Metabolites Obtained from Saudi Red Sea Soft Coral Sarcophyton Sp.

Chemical investigation of the soft coral Sarcophyton sp. collected from the Saudi territorial Red Sea waters, led to isolation of five terpenoidal metabolites (1-5). Three known sesquiterpenoid derivative; guaiacophine (1), guaia-5, 11(12)-dien (2) and calamenene (3), along with two known cembranoidal diterpenes, 2S*,11S*,12R*-isosarcophytoxide (4) and ent-sarcophine (5) were obtained. The structures of the compounds were established based on their NMR, MS, IR and UV spectral data.