Using O=C1c2ccccc2C(=O)N1C[C@@H](O)CN1CCC(Oc2ccc(Cl)c(Cl)c2)CC1 to produce NC[C@@H](O)CN1CCC(Oc2ccc(Cl)c(Cl)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.