Using CC1(C)OC(=O)Nc2ccc(O)cc21, O=S(CCCCBr)c1ccc(Cl)c(Cl)c1 to produce CC1(C)OC(=O)Nc2ccc(OCCCCS(=O)c3ccc(Cl)c(Cl)c3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.