5-amino-1,3-dimethyl-1,3-diazinane-2,4,6-trione

6-(hydroxyamino)-1,3-dimethylpyrimidine-2,4-dione

1,3,7,9-tetramethylpyrimido[5,4-g]pteridine-2,4,6,8-tetrone

1-methyl-4-(phenyldisulfanyl)benzene

N-苄氧羰基-L-苯丙氨酸