User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is an angelica lactone and a butenolide. It derives from a but-3-en-4-olide. It is a tautomer of a beta-angelica lactone.
Assistant: This is a molecule that fits this description: CC1=CCC(=O)O1
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#}
CC1=CCC(=O)O1
5-methyl-3H-furan-2-one
The molecule is an angelica lactone and a butenolide. It derives from a but-3-en-4-olide. It is a tautomer of a beta-angelica lactone.