(1R,3bR,5aR,7aS,10aR,10bR,11R,12R,12aS)-1-(3-furyl)-3b,6,6,12a-tetramethyl-4,9-dioxo-2,3b,4,5,5a,6,7a,8,9,10,10b,11,12,12a-tetradecahydro-1H-cyclopenta[b]cyclopenta[5,6]naphtho[1,2-c]furan-11,12-diyl 11alpha,12beta-Diacetoxyneotecleanin 1H-cyclopenta[b]cyclopenta[5,6]naphtho[1,2-c]furan-4,9(5H,10H)-dione, 11,12-bis(acetyloxy)-1-(3-furanyl)-2,3b,5a,6,7a,8,10b,11,12,12a-decahydro-3b,6,6,12a-tetramethyl-, (1R,3bR,5aR,7aS,10aR,10bR,11R,1 InChI=1/C30H36O8/c1-15(31)36-24-25-29(6,22(34)12-21-27(3,4)38-23-11-18(33)13-30(21,23)25)20-8-7-19(17-9-10-35-14-17)28(20,5)26(24)37-16(2)32/h8-10,14,19,21,23-26H,7,11-13H2,1-6H3/t19-,21-,23-,24+,25-,26-,28-,29+,30+/m0/s