(1aS,4E,8E,10aR,13aR,14aS)-4,8,14a-trimethyl-11-methylene-1a,3,6,7,10,10a,11,13a,14,14a-decahydrooxireno[12,13]cyclotetradeca[1,2-b]furan-12(2H)-one InChI=1/C20H28O3/c1-13-6-5-7-14(2)9-11-18-20(4,23-18)12-17-16(10-8-13)15(3)19(21)22-17/h7-8,16-18H,3,5-6,9-12H2,1-2,4H3/b13-8+,14-7+/t16-,17-,18+,20+/m1/s oxireno[12,13]cyclotetradeca[1,2-b]furan-12(2H)-one, 1a,3,6,7,10,10a,11,13a,14,14a-decahydro-4,8,14a-trimethyl-11-methylene-, (1aS,4E,8E,10aR,13aR,14aS)-