1,3,5-tributyl-1,3,5-triazinane-2,4,6-trione

1-butyl-3,5-diethyl-1,3,5-triazinane-2,4,6-trione

N-乙基-4-甲基-1-哌嗪羧酰胺

2-(ethylcarbamoyl)-4-methyl-2-phenylpentanoic acid