Using O=S(=O)(Cl)c1ccccc1, CSc1ncc(Cc2c[nH]c3ncncc23)cn1 to produce CSc1ncc(Cc2cn(S(=O)(=O)c3ccccc3)c3ncncc23)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.