Using COC(=O)c1cccc(-c2cnc(C(=O)CCc3ccc(-c4ccc(C=O)cc4)cc3)o2)n1, CNC to produce COC(=O)c1cccc(-c2cnc(C(=O)CCc3ccc(-c4ccc(CN(C)C)cc4)cc3)o2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.