Synonyms: 7,9-Dioxabicyclo[4.2.1]nonane-2-aceticacid,4-(acetyloxy)-3-[3-(acetyloxy)-6-(formyloxy)-1-(3-furanyl)octahydro-3a-hydroxy-7-[(2-hydroxy-3-methyl-1-oxopentyl)oxy]-7a-methyl-4-methylene-1H-inden-5-yl]-6-hydroxy-1,3-dimethyl-,methyl ester, [1S-[1a,3b,3ab,5b(1R*,2S*,3S*,4R*,6R*),6b,7a(2S*,3S*),7aa]]-; Rubrin G