Using C=CCOC(=O)N[C@@H](Cc1ccc(C(=N)N)cc1)C(=O)N[C@@H](CCC(=O)OC(C)(C)C)C(=O)OC to produce C=CCOC(=O)N[C@@H](Cc1ccc(C(=N)N)cc1)C(=O)N[C@@H](CCC(=O)OC(C)(C)C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.