Using OB(O)c1ccco1, CCCCNc1nccc(-c2c(-c3ccc(F)cc3)nn3c(Cl)cccc23)n1 to produce CCCCNc1nccc(-c2c(-c3ccc(F)cc3)nn3c(-c4ccco4)cccc23)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.