Using CCCC[Sn](CCCC)(CCCC)c1c(C)csc1C, COc1ccc(-c2nn(C)c(C#N)c2Br)c(F)c1 to produce COc1ccc(-c2nn(C)c(C#N)c2-c2c(C)csc2C)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.