有机化学    

厚朴中联苯型木脂素类成分及其生物活性研究

施冲煜, 陈家毅, 吕喆云, 舒积成, 张英琪, 刘建群*   

  1. 江西中医药大学 现代中药制剂教育部重点实验室,江西 南昌 330004
  • 收稿日期:2025-12-09 修回日期:2026-02-06
  • 基金资助:
    国家自然科学基金项目(No. 82160731); 江西中医药大学校级科技创新团队发展计划(No. CXTD22007)资助项目

Bioactive Biphenyl Lignans from Magnolia officinalis

SHI Chongyu, CHEN jiayi, LV zheyun, SHU jicheng, ZHANG yingqi, LIU Jianqun*   

  1. Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
  • Received:2025-12-09 Revised:2026-02-06
  • Contact: *Email: liu5308@sina.com
  • Supported by:
    National Natural Science Foundation of China ( No. 82160731 ) and Jiangxi University of Traditional Chinese Medicine Science and Technology Innovation Team Development Plan (No. CXTD22007 )

从中药厚朴皮中分离鉴定了12 个联苯型木脂素,其中薄荷基厚朴酚(menthylmagnolol, 1)为第二个报道的、罕见的薄荷基与厚朴酚通过六元环骈的单萜联苯型木脂素新化合物。它的结构通过高分辨质谱、一维/二维核磁共振谱和圆二色谱(ECD)等波谱技术得到确定。和厚朴酚4'-O-β-D-葡萄糖苷(honokiol 4′-O-β-D-glucoside, 9)为新的天然产物,其它联苯型木脂素2~12的结构通过与文献报道的核磁共振等波谱数据对比确定。首次发现化物3~6对蛋白酪氨酸磷酸酶1B(PTP1B)具有显著抑制活性,IC50值分别为:9.20±1.95,9.23±1.12,8.71±0.54和6.90±0.70 μM。化合物4~6、10有显著的幽门螺旋杆菌抑制活性,最低抑菌浓度(MIC)均为500 mg/L。初步构效关系表明薄荷基等单萜基团的引入有利于提高联苯型木脂素的PTP1B酶和幽门螺旋杆菌抑制活性。结果表明单萜骈联苯型木脂素具有作为抗Ⅱ型糖尿病以及抗幽门螺旋杆菌药物的开发潜力。

关键词: 厚朴, 联苯型木脂素, 蛋白酪氨酸磷酸酶1B抑制活性, 抗幽门螺旋杆菌活性

Twelve biphenyl lignans including a new monoterpene biphenyl lignan (menthylmagnolol, 1) and a new natural product (honokiol 4′-O-β-D-glucoside, 9), along with ten known ones (2-12) were isolated from the cortex of Magnoliae officinalis. Their structures were elucidated by HR-MS and spectroscopic methods including 1D/2D NMR and ECD and so on. To the best of our knowledge, only one natural monoterpene biphenyl lignan in which the monoterpene unit and biphenyl lignan unit were fused via a six-membered ring was reported and compound 1 was the second reported natural product with this structural feature. Their in vitro inhibitory activities against protein tyrosine phosphatase 1B (PTP1B) and Helicobacter pylori were evaluated for the first time. Compounds 3~6 showed significant inhibitory activity against protein PTP1B, with IC50 values of 9.20±1.95, 9.23±1.12, 8.71±0.54 and 6.90±0.70 μM, respectively. Compounds 4~6 and 10 showed significant anti-Helicobacter pylori activity with MIC all of 500 mg/L. The preliminary structure-activity relationship exhibited that the monoterpene units of biphenyl lignans were probably beneficial to improve the inhibitory activities against PTP1B and Helicobacter pylori. The research results indicate that monoterpene biphenyl lignans have development potential as drugs for treating type Ⅱdiabetes and Helicobacter pylori infections.

Key words: Magnolia officinalis, Biphenyl lignans, PTP1B inhibitory activity, anti-Helicobacter pylori activity