N,N’-乙基双(2-[2-羟基苯基]甘氨酸)

N,N'-二(2-羟基苄基)乙二胺-N,N'-二乙酸

二水杨醛缩乙二胺钴

2-[[3-[(2-hydroxyphenyl)methyl]-2-phenylimidazolidin-1-yl]methyl]phenol