3-methylspiro[2H-azirine-2,9'-[9H]fluorene]

1-(2-甲氧基-5-甲基苯基)乙酮

1-(5-甲氧基-2-甲基苯基)乙酮

N-(4-ethylphenyl)acetamide

N-(1-ethylcyclohexyl)acetamide