Using CCOC(=O)Cc1c(CBr)n(C(C)=O)c2ccccc12, CC([O-])=S to produce CCOC(=O)Cc1c(CSC(C)=O)n(C(C)=O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.