Using Cc1c(Br)cnn1CC1(O)CCCC(C)(C)C1, C=CS(C)(=O)=O to produce Cc1c(Br)cnn1CC1(OCCS(C)(=O)=O)CCCC(C)(C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.