Using COc1ccc2ncc(=O)n(CC=O)c2n1, O=C(NC[C@@H]1CCCNC1)OCc1ccccc1 to produce COc1ccc2ncc(=O)n(CCN3CCC[C@@H](CNC(=O)OCc4ccccc4)C3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.