Synonyms: dihydrosinularin;(1R,4S,6S,9E,13S,14R,17S)-13-Hydroxy-4,9,13,17-tetramethyl-5,15-dioxatricyclo[12.3.1.04,6]octadec-9-en-16-one;(1R,4S,6S,9E,13S,14R,17S)-13-Hydroxy-4,9,13,17-tetramethyl-5,15-dioxatricyclo[12.3.1.04,6]octadecane-9-ene-16-one;Dihydroflexibilide