Three new compounds comprising two coumarins, paramicoumarins A (1) and B (2), and an acridone alkaloid, paramiacridone (3), together with seven known compounds, were isolated from the n-hexane extract of the roots of Paramignya trimera (Rutaceae). Their structures were elucidated using spectroscopic methods, mainly 1D and 2D NMR. α-Glucosidase inhibition and DPPH radical scavenging activity of the compounds and fifteen other compounds previously isolated from the roots of this plant were evaluated. Most of the compounds exhibited stronger α-glucosidase inhibitory activity than acarbose, the positive control (IC₅₀ = 223.0 μM), and the new compounds paramiacridone (3) and paramicoumarin B (2) showed good inhibitory effect (IC₅₀ = 62.5 and 65.5 μM, respectively). In the DPPH test for radical scavenging activity, the acridone alkaloid glycocitrin III (17) exhibited the highest antioxidant activity (IC₅₀ = 84.2 μM) (compared with the positive control, ascorbic acid, IC₅₀ = 152.7 μM).

包括两个香豆素三个新的化合物，paramicoumarins A（1）和B（2），和吖啶酮生物碱，paramiacridone（3），加上7种已知化合物中，从分离Ñ的根部的己烷提取物Paramignya三聚体（芸香科）。使用主要是1D和2D NMR的光谱方法阐明了它们的结构。评价了该化合物和先前从该植物的根中分离的其他十五种化合物的α-葡萄糖苷酶抑制作用和DPPH自由基清除活性。大多数化合物显示出 比阿卡波糖，阳性对照（IC ₅₀ = 223.0μM）和新化合物对mi啶酮（3）更强的α-葡萄糖苷酶抑制活性（3）和拟除虫菊酯B（2）表现出良好的抑制作用（IC _50分别 为62.5和65.5μM ）。在DPPH自由基清除活性测试中，cri啶酮生物碱糖苷III（17）表现出最高的抗氧化活性（IC ₅₀  = 84.2μM）（与阳性对照抗坏血酸相比，IC ₅₀  = 152.7μM）。