Using CC(C)OC(=O)N1CCC=C(NCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)c2c(F)cccc21 to produce CC(C)OC(=O)N1CCCC(NCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)c2c(F)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.