Using CC(=O)N1CCC(OC(=O)N2CCN(C(=O)OC(C)(C)C)CC2COc2cccnc2)CC1 to produce CC(=O)N1CCC(OC(=O)N2CCNCC2COc2cccnc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.