11-epi-21-Hydroxytoonacilide 3-cyclohexene-1-acetic acid, 2-[(1aR,3R,3aR,4R,5R,6R,7aS)-4,5-bis(acetyloxy)-3-(2,5-dihydro-2-hydroxy-5-oxo-3-furanyl)octahydro-3a-methyl-7-methyleneindeno[1,7a-b]oxiren-6-yl]-2,6,6-trimethyl-5-oxo-, InChI=1/C31H38O11/c1-14-24(29(6)10-9-20(34)28(4,5)19(29)13-22(35)38-8)25(39-15(2)32)26(40-16(3)33)30(7)18(12-21-31(14,30)42-21)17-11-23(36)41-27(17)37/h9-11,18-19,21,24-27,37H,1,12-13H2,2-8H3/t18-,19-,21+,24+,25+,26-,27?,29-,30+,31+/m0/s methyl rel-{(1R,2S)-2-[(1aR,3R,3aR,4R,5R,6R,7aS)-4,5-bis(acetyloxy)-3-(2-hydroxy-5-oxo-2,5-dihydrofuran-3-yl)-3a-methyl-7-methyleneoctahydroindeno[1,7a-b]oxiren-6-yl]-2,6,6-trimethyl-5-oxocyclohex-3-e {2-[4,5-Diacetoxy-3-(2-hydroxy-5-oxo-2,5-dihydro-furan-3-yl)-3a-methyl-7-methylene-octahydro-1-oxa-cyclopropa[c]inden-6-yl]-2,6,6-trimethyl-5-oxo-cyclohex-3-enyl}-acetic acid methyl ester