Using OB(O)c1ccc(OC(F)(F)F)cc1, CC(C)(C)OC(=O)N1CCN(c2nccnc2Cl)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2nccnc2-c2ccc(OC(F)(F)F)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.