Using CCOC(CNC(=O)Nc1ccc(OCC(F)(F)C(F)F)cc1)OCC to produce O=c1[nH]ccn1-c1ccc(OCC(F)(F)C(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.