Using COC(=O)C(CSc1ccc(F)cc1)NC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)NC(CSc1ccc(F)cc1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.