2-甲氧基-4(1H)-嘧啶酮

[(5-ethoxy-2-phenyl-1,3-oxazole-4-carbonyl)amino]methyl methanimidate

5-烯丙基-6-甲基尿嘧啶

2-methoxy-5H-chromeno[4,3-d]pyrimidin-5-ol

methyl N'-(propan-2-ylcarbamoyl)carbamimidate