Using CC(O)=S, CCOC(=O)C1Cc2ccccc2N1C(=O)C(C)Br to produce CCOC(=O)C1Cc2ccccc2N1C(=O)C(C)SC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.