Using Nc1ccccc1NC(=O)c1cc2c(s1)CNCC2, COc1cccc(OCC(=O)O)c1 to produce COc1cccc(OCC(=O)N2CCc3cc(C(=O)Nc4ccccc4N)sc3C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.