Using O=S(=O)(Cl)c1c(F)cccc1F, O=Cc1c[nH]c(-c2ccccc2)n1 to produce O=Cc1cn(S(=O)(=O)c2c(F)cccc2F)c(-c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.