Using C=C[Sn](CCCC)(CCCC)CCCC, O=[N+]([O-])c1cccc2c(OS(=O)(=O)C(F)(F)F)ccnc12 to produce C=Cc1ccnc2c([N+](=O)[O-])cccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.