“…The genus Sinularia is the most widely distributed soft coral, consisting of almost 90 species, of which more than 50 have been chemically examined [ 1 , 2 , 3 , 4 , 5 ]. Up to now, Sinularia has yielded many metabolites, including sesquiterpenes, diterpenes, alkaloids, and polyhydroxylated steroids [ 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. These metabolites display a wide range of biological activities, such as antimicrobial, anti-inflammatory, and cytotoxic activities [ 13 , 14 , 15 , 16 , 17 , 18 ].…”