Using BrCc1ccncc1, CCOC(=O)c1c[nH]cc(-c2ccc(F)cc2)c1=O to produce CCOC(=O)c1cn(Cc2ccncc2)cc(-c2ccc(F)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.