Using COc1ccc2c(c1)N(CCNC(=O)c1ccccc1)CC(c1ccccc1)O2, O=C=Nc1ccccc1 to produce COc1ccc2c(c1)N(CCNC(=O)Nc1ccccc1)CC(c1ccccc1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.