Using O=C(O)Cc1cccc2cccnc12, NCC(O)CN1CCc2ccccc2C1 to produce O=C(Cc1cccc2cccnc12)NCC(O)CN1CCc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.