Using Cc1cn(S(=O)(=O)c2ccccc2)c2ncnc(N3CCN(C(=O)OC(C)(C)C)CC3)c12 to produce Cc1cn(S(=O)(=O)c2ccccc2)c2ncnc(N3CCNCC3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.