Using Nc1ccc(F)cc1F, CCOC(=O)c1nnc2cc(OC)c(OC)cc2c1Cl to produce CCOC(=O)c1nnc2cc(OC)c(OC)cc2c1Nc1ccc(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.