Using O=C1CCN(C(=O)OCc2ccccc2)CC1, CC(C)(C)OC(=O)NN to produce CC(C)(C)OC(=O)NNC1CCN(C(=O)OCc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.