Task: Answer the following question about the molecule with SMILES c1cncnc1.
Description: Please describe this drug.
Result: See also: Thymine (related); Uracil (related); Cytosine (related).
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
c1cncnc1
C1=CN=CN=C1
pyrimidine
Please describe this drug.