SMILES: C[C@H]1[C@@]23C(=O)O[C@]4([C@@H]([C@]5(O2)C(=C)[C@]6(CC[C@]5([C@@]3(C4=C)C(=O)O1)C)C=CC(=O)OC6(C)C)O)C
Description: The molecule is a meroterpenoid produced by Aspergillus nidulans. It has an oxygen-bridged pentacyclic structure which incorporates three lactone functionalities and a spiro union.