128321-81-3 7,11-Methano-2H-cycloocta[f][2]benzopyran-8-aceticacid, 4-(3-furanyl)-1,4,4a,5,6,6a,7,8,9,10,11,12b-dodecahydro-a-hydroxy-4a,7,9,9-tetramethyl-2,13-dioxo-10-(1-oxopropoxy)-,methyl ester, [4R-[4a,4aa,6aa,7a,8a(R*),10b,11a,12ba]]- 128321-87-9 1,5-Methano-2H,8H-oxireno[1,8]cycloocta[1,2-f][2]benzopyran-4-aceticacid, a-(acetyloxy)-8-(3-furanyl)dodecahydro-3,3,5,7a-tetramethyl-10,13-dioxo-2-(1-oxopropoxy)-,methyl ester, [1R-[1a,2b,4a(R*),5a,5aa,7aa,8a,11aa,11bS*,12ab]]- 128321-89-1 1,5-Methano-2H,8H-oxireno[1,8]cycloocta[1,2-f][2]benzopyran-4-aceticacid,8-(3-furanyl)dodecahydro-3,3,5,7a-tetramethyl-2-[(2-methyl-1-oxo-2-butenyl)oxy]-10,13-dioxo-,methyl ester, [1R-[1a,2b(E),4a,5a,5aa,7aa,8a,11aa,11bS*,12ab]]-