Using CCC(=O)C1=C(O)CC(c2ccc(NS(C)(=O)=O)cc2)CC1=O, CON to produce CCC(=NOC)C1=C(O)CC(c2ccc(NS(C)(=O)=O)cc2)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.