Using CCCNc1nc(N2CCN(c3ccc(Cl)cc3)CC2)nc2c(OS(=O)(=O)C(F)(F)F)csc12 to produce CCCNc1nc(N2CCN(c3ccc(Cl)cc3)CC2)nc2c1SCC2OS(=O)(=O)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.