Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl

Four picrotoxane-type sesquiterpenes, dendroterpene A–D (1–4), together with four known compounds (5–8), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis, X-ray diffraction analysis, analysis of the ECD data according to the Klyne�...

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Main Authors: Pei Wang, Xin Chen, Hao Wang, Shengzhuo Huang, Caihong Cai, Jingzhe Yuan, Guoliang Zhu, Xinglian Xu, Wenli Mei, Haofu Dai
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-11-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2019.00812/full
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author Pei Wang
Xin Chen
Xin Chen
Hao Wang
Shengzhuo Huang
Caihong Cai
Jingzhe Yuan
Guoliang Zhu
Xinglian Xu
Wenli Mei
Haofu Dai
author_facet Pei Wang
Xin Chen
Xin Chen
Hao Wang
Shengzhuo Huang
Caihong Cai
Jingzhe Yuan
Guoliang Zhu
Xinglian Xu
Wenli Mei
Haofu Dai
author_sort Pei Wang
collection DOAJ
description Four picrotoxane-type sesquiterpenes, dendroterpene A–D (1–4), together with four known compounds (5–8), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis, X-ray diffraction analysis, analysis of the ECD data according to the Klyne's lactone sector rule, and quantum ECD calculation. Compounds 1 and 2 are two new picrotoxane-type sesquiterpenes with a new carbon skeleton containing a formamide group, which may be derived from the previously reported dendrobiumane B skeleton by the C(9)-C(11) carbon bond cleavage. Compounds 3, 5, 6, and 8 exhibited inhibitory activity against α-glycosidase. Compounds 5 and 6 were cytotoxic against SGC-7901, K562, A549, BEL-7402, and Hela cell lines.
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spelling doaj.art-a0bf8da591da429786e977cfaa2424562022-12-21T23:20:37ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-11-01710.3389/fchem.2019.00812496703Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile LindlPei Wang0Xin Chen1Xin Chen2Hao Wang3Shengzhuo Huang4Caihong Cai5Jingzhe Yuan6Guoliang Zhu7Xinglian Xu8Wenli Mei9Haofu Dai10Hainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaNanjing Agricultural University, Nanjing, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaEast China University of Science and Technology, Shanghai, ChinaNanjing Agricultural University, Nanjing, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaHainan Key Laboratory of Research and Development of Natural Product From Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, ChinaFour picrotoxane-type sesquiterpenes, dendroterpene A–D (1–4), together with four known compounds (5–8), were isolated from the stems of Dendrobium nobile Lindl. Their structures were elucidated by spectroscopic analysis, X-ray diffraction analysis, analysis of the ECD data according to the Klyne's lactone sector rule, and quantum ECD calculation. Compounds 1 and 2 are two new picrotoxane-type sesquiterpenes with a new carbon skeleton containing a formamide group, which may be derived from the previously reported dendrobiumane B skeleton by the C(9)-C(11) carbon bond cleavage. Compounds 3, 5, 6, and 8 exhibited inhibitory activity against α-glycosidase. Compounds 5 and 6 were cytotoxic against SGC-7901, K562, A549, BEL-7402, and Hela cell lines.https://www.frontiersin.org/article/10.3389/fchem.2019.00812/fullDendrobium nobile Lindlpicrotoxanesesquiterpenesα-glycosidase inhibitorcytotoxicity
spellingShingle Pei Wang
Xin Chen
Xin Chen
Hao Wang
Shengzhuo Huang
Caihong Cai
Jingzhe Yuan
Guoliang Zhu
Xinglian Xu
Wenli Mei
Haofu Dai
Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
Frontiers in Chemistry
Dendrobium nobile Lindl
picrotoxane
sesquiterpenes
α-glycosidase inhibitor
cytotoxicity
title Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
title_full Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
title_fullStr Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
title_full_unstemmed Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
title_short Four New Picrotoxane-Type Sesquiterpenes From Dendrobium nobile Lindl
title_sort four new picrotoxane type sesquiterpenes from dendrobium nobile lindl
topic Dendrobium nobile Lindl
picrotoxane
sesquiterpenes
α-glycosidase inhibitor
cytotoxicity
url https://www.frontiersin.org/article/10.3389/fchem.2019.00812/full
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