金钗石斛中一个新的木防己毒烷型倍半萜  

One New Picrotoxane-type Sesquiterpene from Dendrobium nobile

作　　者：杜国鑫 蔡彩虹[2] 夏益华 黄圣卓[2] 梅文莉[2] 戴好富[2] 陈惠琴[2] DU Guoxin;CAI Caihong;XIA Yihua;HUANG Shengzhuo;MEI Wenli;DAI Haofu;CHEN Huiqin(College of Forestry,Hainan University,Haikou 570228,China;Key Laboratory of Natural Products Research and Development of Li Folk Medicine of Hainan Province Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences&Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province,Hainan Institute for Tropical Agricultural Resources,Haikou 571101,China)

机构地区：[1]海南大学林学院,海口570228 [2]中国热带农业科学院热带生物技术研究所海南省黎药资源天然产物研究与利用重点实验室,海南热带农业资源研究院海南省热带农业生物资源保护与利用重点实验室,海口571101

出　　处：《热带亚热带植物学报》2024年第3期446-450,共5页Journal of Tropical and Subtropical Botany

基　　金：海南省院士创新平台科研专项(YSPTZX202037);财政部和农业农村部国家现代农业产业技术体系(CARS-21)资助。

摘　　要：为了解金钗石斛乙醇提取物正丁醇部位的化学成分,通过硅胶、凝胶、反相硅胶和高效液相等各种色谱技术进行分离纯化得到3个化合物,并根据核磁共振、质谱等波谱手段确定其结构分别为2,11-epoxy-11,13-dihydroxypicrotoxano-3(15)-lactone (1)、2,4,6-三甲氧基苯-1-O-β-D-葡萄糖苷(2)和3-methylbutan-1-ol β-D-glucopyranoside (3)。其中化合物1是一个新的木防己毒烷型倍半萜,该类化合物是金钗石斛中具有代表性的倍半萜类型。所有化合物均没有α-葡萄糖苷酶和酪氨酸酶抑制活性,同时化合物1也没有神经保护活性。In order to study the chemical constituents in butanol fraction of ethanol extract of Dendrobium nobile,column chromatographic techniques including silica gel,Sephadex LH-20,revised silica gel and HPLC were used to separate the compounds,and spectroscopic techniques including NMR and MS were implied to determine the structures.Totally 3 compounds were isolated,and their structures were identified as 2,11-epoxy-11,13-dihydro-xypicrotoxano-3(15)-lactone(1),2,4,6-trimethoxyphenol-1-O-β-D-glycoside(2),3-methylbutan-1-olβ-D-gluco-pyranoside(3).Compound 1 was a new picrotoxane-type sesquiterpene,which is one of the representative components in D.nobile.However,none of the compounds showedα-glucosidase and tyrosinase inhibitory activity,none of them showed activity,and compound 1 show no neuroprotective activity either.

关 键 词：金钗石斛 化学成分 倍半萜 新化合物 

分 类 号：R284.1[医药卫生—中药学]