Using O=S(=O)(c1ccc(F)c(F)c1)C1CCC1, C1CNCCN1 to produce O=S(=O)(c1ccc(N2CCNCC2)c(F)c1)C1CCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.