1-(7-甲基[1,2,4]三唑并[1,5-a]嘧啶-6-基)乙酮

4-hydroxy-3-methylpent-3-en-2-one

5-acetyl-6-methyl-2-sulfanylidene-1H-pyridine-3-carbonitrile

1,1'-(4-羟基-6-甲基-1,3-亚苯基)二乙酮

5-acetyl-2-amino-4-hydroxybenzonitrile