Using O=C1CCC(=O)N1Br, Cc1ccc(S(=O)(=O)c2ccccc2S(=O)(=O)N=CN(C)C)cc1 to produce CN(C)C=NS(=O)(=O)c1ccccc1S(=O)(=O)c1ccc(CBr)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.