Using COc1ccc(Nc2cnc(CNC(=O)OC(C)(C)C)c(F)c2)c(C(F)(F)F)c1 to produce COc1ccc(Nc2cnc(CN)c(F)c2)c(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.