Using O=C1CCC(=O)N1Br, Nc1ccc(CS(=O)(=O)N2CCOCC2)cc1 to produce Nc1ccc(CS(=O)(=O)N2CCOCC2)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.