Using O=C(O)c1[nH]c2ccc(Cl)cc2c1S(=O)c1ccccc1, NCc1ccncc1 to produce O=C(NCc1ccncc1)c1[nH]c2ccc(Cl)cc2c1S(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.