Using COc1ccc(-n2nc(C(C)C)cc2-c2ccc(OCCNC(=O)OC(C)(C)C)cc2)cc1 to produce COc1ccc(-n2nc(C(C)C)cc2-c2ccc(OCCN)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.