67832-30-8 Butanoic acid, 3-(acetyloxy)-2-methylene-,9-[(acetyloxy)methyl]-2,3,3a,4,6a,7,9a,9b-octahydro-6a-hydroxy-6-methyl-3-methylene-2-oxoazuleno[4,5-b]furan-4-yl ester 335671-42-6 SPIRO[2H-INDENE-2,3-PYRROLIDIN]-5-ONE,1,3,3A,4,5,6,7,7A-OCTAHYDRO-,STEREOISOMER