Synonyms: Siphonarin A;( )-Siphonarin A;AC1L426U;(1R,2R,3S,4S,6R,7S,9R,10R)-2,4-dihydroxy-1,3,7,9-tetramethyl-10-(3-oxopentan-2-yl)-4-[(1S)-1-(3,5,6-trimethyl-4-oxopyran-2-yl)ethyl]-5,11-dioxaspiro[5.5]undecan-8-one;(2S,3S,4R,5R,6R,8R,9R,11S)-2,4-Dihydroxy-3,5,9,11-tetramethyl-8-(3-oxopentan-2-yl)-2-((1S)-1-(3,5,6-trimethyl-4-oxopyran-2-yl)ethyl)-1,7-dioxaspiro(5.5)undecan-10-one;1,7-Dioxaspiro(5.5)undecan-4-one, 8,10-dihydroxy-3,5,9,11-tetramethyl-2-(1-methyl-2-oxobutyl)-8-(1-(3,5,6-trimethyl-4-oxo-4H-pyran-2-yl)ethyl)-, (6alpha(2R*(R*),3R*,5R*),8alpha,8(S*),9alpha,10alpha,11alpha)-( )-;92125-67-2