Using O=C(O)CCCCCCC(=O)c1ccc(C(F)(F)F)cc1, NO to produce O=C(CCCCCCC(=O)c1ccc(C(F)(F)F)cc1)NO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.