86537-98-6 (4R,4aR,5S,8aR)-3,4a,5-trimethyl-8-oxo-4,4a,5,6,7,8,8a,9-octahydronaphtho[2,3-b]furan-4-yl acetate 86537-99-7 (4R,4aR,5S,8aR)-3,4a,5-trimethyl-8-oxo-4,4a,5,6,7,8,8a,9-octahydronaphtho[2,3-b]furan-4-yl (2E)-2-methylbut-2-enoate 96383-94-7 5H-Cyclopenta[3,4]cyclopropa[8,9]cycloundec[1,2- b]oxiren-5-one,4a-(benzoyloxy)-1a,1b,2,3,4,- 4a,7a,8,8a,9,10,10a-dodecahydro-2-hydroxy- 6-(hydroxymethyl)-3,8,8,10a-tetramethyl-,(1aS,1bR,2S,3S,4aR,6E,7aR,8aS,10aR)-