乙酰基-甘氨酸对硝基苯基酯

N-(苄氧羰基)-L-丙氨酸对硝基苯酯

N-α-Acetyl-L-alanine p-nitrophenyl ester

4-nitrophenyl-α-furoate

2-Thiophenecarboxylic acid, 4-nitrophenyl ester