Synonyms: Siphonarin B;( )-Siphonarin B;AC1L426V;(1S,2S,3R,4R,6S,7R,9S,10S)-4-[1-(6-ethyl-3,5-dimethyl-4-oxopyran-2-yl)ethyl]-2,4-dihydroxy-1,3,7,9-tetramethyl-10-[(2S)-3-oxopentan-2-yl]-5,11-dioxaspiro[5.5]undecan-8-one;1,7-Dioxaspiro(5.5)undecan-4-one, 8-((1R)-1-(6-ethyl-3,5-dimethyl-4-oxo-4H-pyran-2-yl)ethyl)-8,10-dihydroxy-3,5,9,11-tetramethyl-2-((1S)-1-methyl-2-oxobutyl)-, (2S,3S,5S,6S,8R,9R,10S,11S)-;92125-68-3