Using CN, Nc1ccc(-n2c(=O)[nH]c3cc(F)c(F)cc3c2=O)cc1 to produce CNc1cc2[nH]c(=O)n(-c3ccc(N)cc3)c(=O)c2cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.