ethyl N-[(5-chloro-2-nitrophenyl)methyl]glycine

3-hydroxy-4,4-dimethyl-pentanoic acid ethyl ester

ethyl 2-hydroxy-2-(4-nitrophenyl)butanoate

ethyl 2-((3-methoxyphenyl)amino)acetate

ethyl 3-hydroxy-3-(4-(trifluoromethyl)phenyl)propanoate