92356-80-4 (3aS,4S,5S,6E,11S,11aS)-5-(Acetyloxy)-2,3,3a,4,5,8,9,10,11,11a-decahydro-11-hydroxy-3,10-bis(methylene)-4-[[(Z)-2-methyl-1-oxo-2-butenyl]oxy]-2-oxocyclodeca[b]furan-6-carboxylic acid methyl ester 92356-87-1 3-Hydroxy-2-methylenebutanoic acid 2,3,3a,4,5,5a,6,7,9a,9b-decahydro-6-hydroxy-5a,9-dimethyl-3-methylene-2-oxonaphtho[1,2-b]furan-4-yl ester