Question: Please describe this drug.
Description: The Chemical can be represented with the SMILES COC(=O)CCC(=O)CN.
Answer: Methyl aminolevulinate is a Porphyrin Precursor.
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
COC(=O)CCC(=O)CN
COC(=O)CCC(=O)CN
methyl 5-amino-4-oxopentanoate
Please describe this drug.