Structurally diverse phthalides from fibrous roots of Ligusticum chuanxiong Hort. and their biological activities

文献类型： 外文期刊

第一作者： Tan, Yu-Zhu

作者： Tan, Yu-Zhu;Yan, Hong-Ling;Liu, Yun-Yun;Qiao, Ji-Xu;Wu, Jing;Tian, Yin;Peng, Cheng;Liu, Yun-Yun;Yan, Yong-Ming;Wang, Li

作者机构：

关键词： Ligusticum chuanxiong; Phthalides; Structure elucidation; Biological activities; Structure-activity relationships

期刊名称：FITOTERAPIA （ 影响因子：3.4； 五年影响因子：3.3 ）

ISSN： 0367-326X

年卷期： 2024 年 175 卷

页码：

收录情况： SCI

摘要： Falonolide A (1) and B (2), two novel polyyne hybrid phthalides resulting from unprecedented carbon skeleton polymerized by Z-ligustilide and falcarindiol, along with six new related phthalides (3-8), were isolated from Ligusticum chuanxiong Hort. Their structures were elucidated by spectroscopic analysis, computer-assisted structure elucidation (CASE) analysis, DP4+ probability analysis and electronic circular dichroism (ECD) calculations. A plausible biosynthetic pathway for 1-8 was proposed, and the production mechanism of 2 was revealed by density functional theory (DFT) method. Compounds 4 and 6 exhibited significant vasodilatory activity with EC50 of 8.00 +/- 0.86 and 6.92 +/- 1.02 mu M, respectively. Compound 4 also displayed significant inhibitory effect of NO production with EC50 value of 8.82 +/- 0.30 mu M. Based on the established compounds library, structure-activity relationship analysis of phthalides was explored to provide insights into the drug development of vasodilators and anti-flammatory

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