3-氯苯甲基脲

4-phenylpiperazine-1-carboxamide

[(1R,2S,5R)-5-methyl-2-propan-2-ylcyclohexyl] (2S)-5-oxopyrrolidine-2-carboxylate

(aminocarbamothioylamino)urea

2-氰基乙基脲