Using CC(C)[C@@H](NC(=O)OC(C)(C)C)C(=O)F, NCCS to produce CC(C)[C@@H](NC(=O)OC(C)(C)C)C(=O)NCCS, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.