作者:Shu-Chen Chou、Chung-Ren Su、Yuh-Chi Ku、Tian-Shung Wu
DOI:10.1248/cpb.57.1227
日期:——
Chemical investigation on the whole plant of Houttuynia cordata has resulted in the isolation of two new compounds, named as houttuynoside A (1) and houttuynamide A (2), together with thirty-eight known compounds. The structures of 1 and 2 were elucidated on the basis of spectroscopic analysis. In the inhibitory effects on herpes simplex virus type 1 (HSV-1) assay, norcepharadione B (10) showed good inhibitory activity against the replication of HSV-1. In addition, the antioxidant and antityrosinase activities of some isolated compounds were also evaluated. Among these compounds, quercitrin (25) and quercetin-3-O-β-D-galactopyranoside (26) showed excellent 2,2-diphenyl-1-picrylhydrazyl radical-scavenging property with IC50 values of 31 and 63 μM, respectively. Cepharadione B (9) exhibited strong tyrosinase inhibitory activity with an IC50 value of 170 μM.
通过对蕺菜全株进行化学研究,分离出了两种新化合物,即蕺菜苷 A(1)和蕺菜酰胺 A(2),以及 38 种已知化合物。根据光谱分析,阐明了 1 和 2 的结构。在对单纯疱疹病毒 1 型(HSV-1)的抑制作用试验中,去甲卡二酮 B(10)对 HSV-1 的复制具有良好的抑制作用。此外,还评估了一些分离化合物的抗氧化和抗酪氨酸酶活性。在这些化合物中,槲皮素(25)和槲皮素-3-O-β-<小>D小>-吡喃半乳糖苷(26)表现出优异的 2,2-二苯基-1-苦基肼自由基清除性能,IC50 值分别为 31 和 63 μ<小>M小>。头花二酮 B (9) 具有很强的酪氨酸酶抑制活性,其 IC50 值为 170 μ<小>M小>。