8-chloro-3-ethyl-1,7-dimethylpurine-2,6-dione

7-amino-1-ethyl-6-fluoro-4-oxoquinoline-3-carboxylic acid

2,2-二甲基-3-硫杂戊酰胺

2-hydroxy-2-methyl-1-phenylbutan-1-one

3-hydroxy-3-phenylpentane-2-one