Using Cc1nc(NCCc2ccccc2)c2c(n1)N(c1ccccc1)C(=O)C2 to produce Cc1nc(NCCc2ccccc2)c2c(n1)N(c1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.