The discovery of novel α-glucosidase inhibitors and anti-diabetic candidates from natural or natural-derived products represents an attractive therapeutic option. Here, a collection of acetylphenol analogues derived from paeonol and acetophenone were synthesized and evaluated for their α-glucosidase inhibitory activity. Most of derivatives, such as 9a–9e, 9i, 9m–9n and 11d–1e, (IC₅₀ = 0.57 ± 0.01 μM to 8.45 ± 0.57 μM), exhibited higher inhibitory activity than the parent natural products and were by far more potent than the antidiabetic drug acarbose (IC₅₀ = 57.01 ± 0.03 μM). Among these, 9e and 11d showed the most potent activity in a non-competitive manner. The binding processes between the two most potent compounds and α-glucosidase were spontaneous. Hydrophobic interactions were the main forces for the formation and stabilization of the enzyme - acetylphenol scaffold inhibitor complex, and induced the topography image changes and aggregation of α-glucosidase. In addition, everted intestinal sleeves in vitro and the maltose loading test in vivo further demonstrated the α-glucosidase inhibition of the two compounds, and our findings proved that they have significant postprandial hypoglycemic effects.

从天然或天然来源的产品中发现新型α-葡萄糖苷酶抑制剂和抗糖尿病候选药物代表了一种有吸引力的治疗选择。在这里，合成了一组从丹皮酚和苯乙酮衍生的乙酰酚类似物，并对其α-葡萄糖苷酶抑制活性进行了评估。大多数衍生物，例如9a – 9e，9i，9m–9n和11d–1e（IC ₅₀  = 0.57±0.01μM至8.45±0.57μM），比母体天然产物显示出更高的抑制活性，并且效力更强比抗糖尿病药物阿卡波糖（IC ₅₀  = 57.01±0.03μM）。其中9e和11d以非竞争方式表现出最有效的活动。两种最有效的化合物与α-葡萄糖苷酶之间的结合过程是自发的。疏水相互作用是酶-乙酰酚支架抑制剂复合物的形成和稳定的主要力量，并诱导了地形图像的变化和α-葡萄糖苷酶的聚集。此外，体外翻肠肠和体内麦芽糖负荷试验进一步证明了这两种化合物的α-葡萄糖苷酶抑制作用，我们的发现证明它们具有显着的餐后降血糖作用。