Using COc1cc(Br)c(OC(=O)c2ccc(OC)c(C(F)(F)F)c2)c(NC(=O)c2ccc(OC)c(C(F)(F)F)c2)c1 to produce COc1cc(Br)c2oc(-c3ccc(OC)c(C(F)(F)F)c3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.