Using FCCBr, CCOC(=O)c1c[nH]c2cc(F)c(F)cc2c1=O to produce CCOC(=O)c1cn(CCF)c2cc(F)c(F)cc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.