Using Cc1c(Br)ccnc1C1NC2(CCN(C)C2=O)CC1S(=O)(=O)c1ccccc1 to produce Cc1c(Br)ccnc1C1=NC2(CC1)CCN(C)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.