SMILES: C/C/1=C\\C[C@@H]([C@@]2([C@H](O2)[C@@H]3[C@@H](CC1)C(=C)C(=O)O3)C)O
Description: The molecule is compound 524 in Scheme 3 from pmid:30468448. Produced by the same enzyme that produces CHEBI:144560 It derives from a parthenolide.