Using CCOC(=O)[C@@H](N)CCCNC(=N)N, CC(=O)N[C@@H](Cc1ccccc1)C(=O)O to produce CCOC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](Cc1ccccc1)NC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.