Using CCOC(=O)c1nc(-c2ccccc2)sc1N, O=C=NS(=O)(=O)Cl to produce CCOC(=O)c1nc(-c2ccccc2)sc1NC(N)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.