Using CCCCCCCCCCCC(OC(=S)C(=O)c1ncc[nH]1)C(F)(F)C(=O)OCC to produce CCCCCCCCCCCCC(F)(F)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.