Using C[C@H](NC(=O)CN)C(=O)OCc1ccccc1, CC(C)(C)OC(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)Oc1cc(Cl)c(Cl)cc1Cl to produce C[C@H](NC(=O)CNC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)OC(C)(C)C)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.