Using O=S(=O)(c1ccccc1B(O)O)N1CCOCC1, Nc1cccc(Br)c1 to produce Nc1cccc(-c2ccccc2S(=O)(=O)N2CCOCC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.