Using COc1ccc(NCCN)cc1, O=C(O)[C@H](CC1CCCCC1)Nc1nc2ccccc2o1 to produce COc1ccc(NCCNC(=O)[C@H](CC2CCCCC2)Nc2nc3ccccc3o2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.