IUPAC: (2Z)-4-[(1S,2S,8S,19R)-12-hydroxy-8,21,21-trimethyl-5-(3-methylbut-2-en-1-yl)-8-(4-methylpent-3-en-1-yl)-14,18-dioxo-3,7,20-trioxahexacyclo[15.4.1.0^{2,15}.0^{2,19}.0^{4,13}.0^{6,11}]docosa-4(13),5,9,11,15-pentaen-19-yl]-2-(hydroxymethyl)but-2-enoic acid

SMILES: [H][C@@]12CC3([H])C=C4C(=O)c5c(O)c6C=C[C@](C)(CCC=C(C)C)Oc6c(CC=C(C)C)c5O[C@@]14[C@@](C\C=C(\CO)C(O)=O)(OC2(C)C)C3=O