Using [N-]=[N+]=NC[C@H]1CCc2cccc(-c3c(Cl)cccc3Cl)c2O1 to produce NC[C@H]1CCc2cccc(-c3c(Cl)cccc3Cl)c2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.