User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a meroterpenoid produced by Aspergillus nidulans. It has a pentacyclic structure which incorporates three lactone functionalities and a spiro union.
Assistant: This is a molecule that fits your description: C=C1[C@]23C(=O)O[C@@H](C)[C@]2(O)C(=O)O[C@@]1(C)[C@H](O)C1=C(C)[C@@]2(C=CC(=O)OC2(C)C)CC[C@]13C
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
C=C1[C@]23C(=O)O[C@@H](C)[C@]2(O)C(=O)O[C@@]1(C)[C@H](O)C1=C(C)[C@@]2(C=CC(=O)OC2(C)C)CC[C@]13C
(1S,2R,5S,8R,9R,12S,13S)-8,12-dihydroxy-2,6,6',6',9,13-hexamethyl-16-methylidenespiro[10,14-dioxatetracyclo[7.6.1.01,12.02,7]hexadec-6-ene-5,5'-pyran]-2',11,15-trione
The molecule is a meroterpenoid produced by Aspergillus nidulans. It has a pentacyclic structure which incorporates three lactone functionalities and a spiro union.