Using CCS, CCOC(=O)C1=CN(C(=O)c2ccc(F)cc2)CC(O)c2c1[nH]c1ccccc21 to produce CCOC(=O)C1=CN(C(=O)c2ccc(F)cc2)CC(SCC)c2c1[nH]c1ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.