Using N[C@H]1Cc2ccccc2CNC1=O, O=C(O)c1cc2cc(Cl)ccc2[nH]1 to produce O=C(N[C@H]1Cc2ccccc2CNC1=O)c1cc2cc(Cl)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.