Using O, COc1ccc(-c2ccc(S(=O)(=O)NC3CC(CSc4nc[nH]n4)OC3=O)cc2)cc1 to produce COc1ccc(-c2ccc(S(=O)(=O)NC(CC(O)CSc3nc[nH]n3)C(=O)O)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.