Using CCOc1ccc([Sn](C)(C)C)cn1, Fc1cccc(F)c1C1=NC(c2ccc(Br)cc2)CO1 to produce CCOc1ccc(-c2ccc(C3COC(c4c(F)cccc4F)=N3)cc2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.