Using O=C(CCl)N1CCN(C2CCC2)CC1, O=c1ccc2c([nH]1)CCNC2 to produce O=C(CN1CCc2[nH]c(=O)ccc2C1)N1CCN(C2CCC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.