Using O=C1NS(=O)(=O)c2cc(Br)ccc21, COc1ccc(CCl)cc1 to produce COc1ccc(CN2C(=O)c3ccc(Br)cc3S2(=O)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.