Using CC(=O)c1cn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)nc1C#N, C1CCOC1 to produce C=C(C)c1cn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)nc1C#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.