Using Nc1ccc(F)c(Cl)c1, Fc1cc(F)c2c(Cl)ncnc2c1 to produce Fc1cc(F)c2c(Nc3ccc(F)c(Cl)c3)ncnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.