Using O=[N+]([O-])c1ccc(Cl)nc1, CCCC[Sn](C=Cc1ccccc1)(CCCC)CCCC to produce Nc1ccc(/C=C/c2ccccc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.