Using CC(C)(C)OC(=O)N[C@@H](Cc1cccnc1)C(=O)O, NC(CCCc1ccccc1)CCCc1ccccc1 to produce CC(C)(C)OC(=O)N[C@@H](Cc1cccnc1)C(=O)NC(CCCc1ccccc1)CCCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.