Using COC(=O)CC1c2cc(OC)ccc2NC1C, Clc1nc2ccccc2nc1Cl to produce COC(=O)CC1c2cc(OC)ccc2N(c2nc3ccccc3nc2Cl)C1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.