Using CCOC(=O)C[C@H]1CCCN1C(=O)c1ccc(C(=O)N[C@@H](C)c2nc3cc(Cl)ccc3[nH]2)cc1Cl to produce C[C@H](NC(=O)c1ccc(C(=O)N2CCC[C@@H]2CC(=O)O)c(Cl)c1)c1nc2cc(Cl)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.