Task: Please create a molecule SMILES based on the text description.
Description: 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.
Result: CCCC(=O)C1=C(O)[C@H](CC(=O)OC)OC1=O
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
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.