Task: Answer the following question about the molecule with SMILES CN1CCC(Nc2ncc3ncnc(Nc4ccc(F)c(Cl)c4)c3n2)CC1.
Request: Please provide a description of this drug's mechanism of action.
Answer: Epidermal growth factor receptor erbB1 inhibitor
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
CN1CCC(Nc2ncc3ncnc(Nc4ccc(F)c(Cl)c4)c3n2)CC1
CN1CCC(Nc2ncc3ncnc(Nc4ccc(F)c(Cl)c4)c3n2)CC1
4-N-(3-chloro-4-fluorophenyl)-6-N-(1-methylpiperidin-4-yl)pyrimido[5,4-d]pyrimidine-4,6-diamine
Please provide a description of this drug's mechanism of action.