Using COc1cc2c(c(C)c1C)N(CCCN)CC1(CCC1)C2, O=C(O)c1ccccc1 to produce COc1cc2c(c(C)c1C)N(CCCNC(=O)c1ccccc1)CC1(CCC1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.