Task: Please create a description for a molecule.
SMILES: CCCC(=O)C1=C(O)[C@H](CC(=O)OC)OC1=O
Constraint: Answer the question with full sentences.
Result: The molecule is the methyl ester of carlosic acid. It is a butenolide, a methyl ester, an enol, a ketone and a tetronic acid derivative. It derives from a carlosic acid.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
methyl 2-[(2S)-4-butanoyl-3-hydroxy-5-oxo-2H-furan-2-yl]acetate
The molecule is the methyl ester of carlosic acid. It is a butenolide, a methyl ester, an enol, a ketone and a tetronic acid derivative. It derives from a carlosic acid.