Using COC(=O)C(Cc1cnc(Nc2ccccc2)nc1NCC1CC1)c1ccc(OC)cc1 to produce COc1ccc(C2Cc3cnc(Nc4ccccc4)nc3N(CC3CC3)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.