Using Clc1ccc2ccccc2n1, CC1CCN(c2nccnc2C2CNC2)C1 to produce CC1CCN(c2nccnc2C2CN(c3ccc4ccccc4n3)C2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.