Using CC(=O)N1CCc2cc(S)ccc21, CCOC(COS(=O)(=O)C(F)(F)F)OCC to produce CCOC(CSc1ccc2c(c1)CCN2C(C)=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.