Using CC(=O)NCC(=O)O, CCOC(=O)Nc1cccc(Cn2nc(-c3ccc(CN)cc3)ccc2=O)c1 to produce CCOC(=O)Nc1cccc(Cn2nc(-c3ccc(CNC(=O)CNC(C)=O)cc3)ccc2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.