77912-51-7 (3S,5R,5S,8aS)-3α-Acetoxy-4aα-(acetoxymethyl)-5-(3-furyl)-4,5,2,3,4a,7,8,8a-octahydro-2α-methyldispiro[furan-3(2H),1(4H)-naphthalene-5(6H),2-oxirane]-2,4-dione 77928-51-9 bis[(3aR,4S,4aR,7aR,8R,9aR)-4a,8-dimethyl-3-methylidene-2,5-dioxo-2,3,3a,4,4a,5,7a,8,9,9a-decahydroazuleno[6,5-b]furan-4-yl] pentanedioate