Using CCOC(=O)c1nc(NC(=O)Nc2ccc(OC(F)(F)F)cc2)cn1CC1CC1 to produce O=C(Nc1ccc(OC(F)(F)F)cc1)Nc1cn(CC2CC2)c(C(=O)O)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.