Using O=S1(=O)CCN2C=CC=C(c3ccc(C(F)(F)F)cc3)C2=N1 to produce O=S1(=O)CCN2CCCC(c3ccc(C(F)(F)F)cc3)C2=N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.