Using O=C=Nc1ccc(OC(F)(F)F)cc1, CCOC(=O)CCNC(=O)c1ccc(CN)cc1 to produce CCOC(=O)CCNC(=O)c1ccc(CNC(=O)Nc2ccc(OC(F)(F)F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.