Using Cc1cccc(OCCCCBr)c1, O=C1NS(=O)(=O)c2ccccc21 to produce Cc1cccc(OCCCCN2C(=O)c3ccccc3S2(=O)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.