Using OB(O)c1cccnc1, Cn1c(Br)c2c(c(O)c1=O)C(=O)N(Cc1ccc(F)c(Cl)c1)CC2 to produce Cn1c(-c2cccnc2)c2c(c(O)c1=O)C(=O)N(Cc1ccc(F)c(Cl)c1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.