3-[(4-羟基甲酰基)氨基]丙酸

3-chlorosulfonyl-4-hydroxybenzoic acid

4-[4-(trifluoromethyl)phenoxy]benzoic acid

8-(羟基甲基)-1,4-二噁螺[4.5]癸烷-8-羧酸乙酯

benzyl 4-(2,2,2-trichloroethoxysulfonyloxy)benzoate