Using Cc1c(S(=O)(=O)Cl)sc2ccc(Cl)cc12, O=C1CN(c2ncccc2C(F)(F)F)CCN1 to produce Cc1c(S(=O)(=O)N2CCN(c3ncccc3C(F)(F)F)CC2=O)sc2ccc(Cl)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.