Using Cc1ccccc1-n1nc(-c2ccc(F)cc2)c(Br)c1N, CCCCC([Sn])=C(CCCC)CCCC to produce C=Cc1c(-c2ccc(F)cc2)nn(-c2ccccc2C)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.