Using Nc1cn(-c2ccccc2)nc1C(=O)N1CCOCC1, O=S(=O)(Cl)c1ccccc1Br to produce O=C(c1nn(-c2ccccc2)cc1NS(=O)(=O)c1ccccc1Br)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.