8,9-dimethoxy-4-methylpyrano[3,2-c]chromene-2,5-dione

N-(2H-四唑-5-基)乙酰胺

2,5-dimethyl-4,5-dihydro-1,3-oxazole

3-甲基-4,6-二硝基苯酚

1-(2-benzylphenyl)ethanone