Using CC(C)(C)OC(=O)N1CCN(c2ccc(N(Cc3ccccc3)Cc3ccccc3)c(OC(F)(F)F)c2)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2ccc(N)c(OC(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.