Using CN1C(=O)c2ccccc2S1(=O)=O, O=C(CCl)Nc1ccccn1 to produce CN1C(C(=O)Nc2ccccn2)=C(O)c2ccccc2S1(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.