Using O=S(=O)(c1ccc(Nc2ncnc3c2CCN(Cc2ccccc2)C3)cc1)C(F)(F)F to produce O=S(=O)(c1ccc(Nc2ncnc3c2CCNC3)cc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.