keto-amide

例句：

1. 1. Ketone amide is a key intermediate in the synthesis of many drugs.
   酮酰胺是合成许多药物的关键中间体。
2. 2.The ketone amide structure is common in natural products and plays a role in their biological activity.
   酮酰胺结构常见于天然产物中，并参与其生物活性。
3. 3. The ketone amide group has been found to have antibacterial properties.
   酮酰胺组已被发现具有抗菌性质。