methyl 4-oxopent-2-ynoate

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

4-乙酰基-5-甲基-2-苯基-2,4-二氢-3H-吡唑-3-酮

1-(10-乙酰基吩噻嗪-2-基)-2-氯乙酮

2-乙酰基硫代苯乙酮