Using COc1ccc(Nc2cc(NC3CC3)c3ncc(Br)n3n2)cc1OC, OB(O)c1cc2ccccc2s1 to produce COc1ccc(Nc2cc(NC3CC3)c3ncc(-c4cc5ccccc5s4)n3n2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.