Using O=S(=O)(O)O, Cn1c(Nc2c(Cl)cccc2Cl)nc2ccc(N)c(C#N)c21 to produce Cn1c(Nc2c(Cl)cccc2Cl)nc2ccc(N)c(C(N)=O)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.