Using CC(C)(C)OC(=O)N1CC(CC(=O)NN)C1, O=C(O)[C@@H]1CC[C@@H]2CN1C(=O)N2OCc1ccccc1 to produce CC(C)(C)OC(=O)N1CC(CC(=O)NNC(=O)[C@@H]2CC[C@@H]3CN2C(=O)N3OCc2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.