Using CCOC(=O)/C=C/c1cc(-c2ccccc2)n(-c2ccc(S(C)(=O)=O)cc2)n1 to produce CCOC(=O)CCc1cc(-c2ccccc2)n(-c2ccc(S(C)(=O)=O)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.