Using COC(=O)C1CN(C(=O)OC(C)(C)C)CCN1C(=O)OCc1ccccc1, CCOS(=O)(=O)C(F)(F)F to produce CCC1(C(=O)OC)CN(C(=O)OC(C)(C)C)CCN1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.