N-氨基甲酰-alpha-氨基-异丁酸

3,5,5-三甲基-4H-吡唑-1-甲酰胺

戊基脲

1-苄基-1-(喹啉-4-基甲基)脲

5-[[(2,5-dioxoimidazolidin-4-yl)methyldisulfanyl]methyl]imidazolidine-2,4-dione