Cyclohexyl-<4-fluor-phenyl>-glykolsaeure-<2-diaethylamino-aethylester>

(Z)-tert-butyl 2-(4-fluorophenyl)-3-nitroacrylate

tert-butyl 2-hydroxy-3-nitro-2-(4-fluorophenyl)propanoate

tert-butyl 2-(4-chlorophenyl)-2-oxoacetate