Using c1ccc2c(c1)CC(Nc1ncc3c(n1)CCNC3)C2, CC(C)(C)OC(=O)NCCC(=O)O to produce CC(C)(C)OC(=O)NCCC(=O)N1CCc2nc(NC3Cc4ccccc4C3)ncc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.