Using CC(C)(C)OC(C[C@@H](C=O)NC(=O)[C@@H](N)Cc1ccccc1)=NNC(N)=O, Cn1c(C(=O)O)cc2ccccc21 to produce Cn1c(C(=O)N[C@@H](Cc2ccccc2)C(=O)N[C@H](C=O)CC(=NNC(N)=O)OC(C)(C)C)cc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.