Using CCn1cnc2c(Nc3cccc(Cl)c3)nc(N3CCC[C@H]3C(N)=O)nc21 to produce CCn1cnc2c(Nc3cccc(Cl)c3)nc(N3CCC[C@H]3CN)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.