Using c1ccc2c(c1)CCNC2, O=C(O)CN1CCC(c2ccccc2)(c2ccccc2)C1=O to produce O=C(CN1CCC(c2ccccc2)(c2ccccc2)C1=O)N1CCc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.