Using O=Cc1ccc(-c2cccc3ccccc23)c(Cl)c1Cl, NCc1ccccc1 to produce Clc1c(CNCc2ccccc2)ccc(-c2cccc3ccccc23)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.