2,19-dioxa-10,27-diazapentacyclo[28.2.2.2~20,23~.1~3,7~.1~14,18~]octatriaconta-3,5,7(38),14,16,18(37),20,22,30,32,33,35-dodecaene-11,12,25,26-tetrone, 16,21,32-tribromo-4,17-dihydroxy-, 12,25-dioxime, 4-nor-18-homo-ent-kauran-4(18)-en-15beta,16beta,17-triol-3beta,19-olide InChI=1/C20H28O5/c1-18-6-5-14-12(8-16(22)25-14)13(18)4-7-19-9-11(2-3-15(18)19)20(24,10-21)17(19)23/h8,11,13-15,17,21,23-24H,2-7,9-10H2,1H3/t11?,13?,14-,15?,17-,18-,19-,20+/m1/s rel-(5aR,6R,7R,8R,10bS,12aR)-6,7-dihydroxy-7-(hydroxymethyl)-10b-methyl-4,5,6,7,8,9,10,10a,10b,11,12,12a-dodecahydro-5a,8-methanocyclohepta[5,6]naphtho[2,1-b]furan-2(3bH)-one