Using O=C1c2ccc(-c3ccc(Cl)cc3Cl)cc2[C@H]2CNCC[C@@H]12 to produce Clc1ccc(-c2ccc3c(c2)[C@H]2CNCC[C@H]2C3)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.