Using OB(O)c1cc(F)cc(Cl)c1, CCOC(=O)c1nc(-c2ccc(F)c(C#N)c2)c(Br)s1 to produce N#Cc1cc(-c2nc(C(=O)O)sc2-c2cc(F)cc(Cl)c2)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.