Using OB(O)c1cc[nH]n1, OCCCNc1nc2cc(OC(F)(F)F)ccc2n2c(Br)cnc12 to produce OCCCNc1nc2cc(OC(F)(F)F)ccc2n2c(-c3ccn[nH]3)cnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.