Using OB(O)c1cc[nH]n1, COC[C@H](C)Oc1cc(Oc2ccc(S(C)(=O)=O)cc2)cc(-c2ccc(Br)n2C(=O)OC(C)(C)C)c1 to produce COC[C@H](C)Oc1cc(Oc2ccc(S(C)(=O)=O)cc2)cc(-c2ccc(-c3cc[nH]n3)[nH]2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.