SMILES: C[C@H]1[C@@]2(C(=O)O[C@]3([C@@H](C4=C([C@]5(CC[C@]4([C@@]2(C3=C)C(=O)O1)C)C=CC(=O)OC5(C)C)C)O)C)O
Description: The molecule is a meroterpenoid produced by Aspergillus nidulans. It has a pentacyclic structure which incorporates three lactone functionalities and a spiro union.