Using CCOC(=O)C(=CNCc1ccccn1)C(=O)c1cc(F)c(F)c(OC(F)F)c1F to produce CCOC(=O)c1cn(Cc2ccccn2)c2c(OC(F)F)c(F)c(F)cc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.