Q: Please describe this drug.
Constraint: The Molecule can be represented with the SMILES c1ncc2[nH]cnc2n1.
Result: Purine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655).
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
c1ncc2[nH]cnc2n1
C1=C2C(=NC=N1)N=CN2
purine
Please describe this drug.
Purine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655).