Using CC1(C)CNc2ccccc21, COc1cc(Cl)nc(CC(=O)O)n1 to produce COc1cc(Cl)nc(CC(=O)N2CC(C)(C)c3ccccc32)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.