4-(2-hydroxybenzoyl)-1,2-dihydropyrazol-3-one

4-formyl-5-(o-hydroxyphenyl)-isoxazole oxime

4-羟基香豆素

N,N'-(propane-1,3-diyl)bis(2-hydroxybenzamide)

1,8-bis(2-hydroxybenzamide)-3,6-diazaoctane