Using COc1nc(Cl)cc(NCCc2ccc(C(=O)O)cc2)n1, CC(=O)NN to produce COc1nc(Cl)cc(NCCc2ccc(C(=O)NNC(C)=O)cc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.