Using CCOC(=O)COc1cccc2c1CCc1sc(S)nc1-2, BrC(c1ccccc1)c1ccccc1 to produce CCOC(=O)COc1cccc2c1CCc1sc(SC(c3ccccc3)c3ccccc3)nc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.