Using CC(C)(C)OC(=O)NCc1ncc(Nc2ccc(Cl)cc2C(F)(F)F)cc1F to produce NCc1ncc(Nc2ccc(Cl)cc2C(F)(F)F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.