Using O=Cc1cccc(OC(F)(F)C(F)F)c1, NCCC(O)C(F)(F)F to produce OC(CCNCc1cccc(OC(F)(F)C(F)F)c1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.