4-(allyloxycarbonylamino)benzoic acid

(1R,4R,5R,8S)-4-amino-8-bromo-6-oxabicyclo[3.2.1]oct-2-en-7-one

4-[(三氟乙酰基)氨基]苯甲酸

苯佐卡因

4-溴苯甲酸