Using CCOC1=NC(C)(c2cccc(NC(=O)c3ncc(F)cc3F)c2)COC1 to produce CC1(c2cccc(NC(=O)c3ncc(F)cc3F)c2)COCC(=O)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.