Using CS(=O)(=O)Nc1ccc2c(c1)C(O)CC1(CCC(N3CCc4ccccc4C3)CC1)O2 to produce CS(=O)(=O)Nc1ccc2c(c1)C=CC1(CCC(N3CCc4ccccc4C3)CC1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.