Using O=C(OC(=O)C(F)(F)F)C(F)(F)F, CNCC=C1CC2(CCCC2)c2ccccc21 to produce CNCC(O)C1=CC2(CCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.