1
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Zhou TT, Zhang MW, Liu YC, Li XN, Liu Y, Guo K, Li SH. Immunosuppressive leucosesterterpane and penta-nor-leucosesterterpane sesterterpenoids from Leucosceptrum canum. PHYTOCHEMISTRY 2024; 225:114185. [PMID: 38876164 DOI: 10.1016/j.phytochem.2024.114185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Five undescribed leucosesterterpane sesterterpenoids, leucosceptrines A-E, two undescribed penta-nor-leucosesterterpane (C20) sesterterpenoids, nor-leucosceptrines A and B, and three known analogues, were obtained from the aerial parts of Leucosceptrum canum of Chinese origin. Leucosceptrines A-C are the first examples of leucosesterterpane-type sesterterpenoids with unclosed dihydropyran rings and reverse configurations at chiral centers C-4 and/or C-12. Nor-leucosceptrines A and B possesses an unusual penta-nor-leucosesterterpane skeleton. Their structures were unambiguously elucidated through comprehensive spectroscopic analyses and single-crystal X-ray diffraction. A plausible biogenetic pathway for these sesterterpenoids was proposed. The immunosuppressive effects of these isolates on the secretion of the cytokine IFN-γ by T cells stimulated with anti-CD3/CD28 monoclonal antibodies were observed with different potencies.
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Affiliation(s)
- Ting-Ting Zhou
- Key Laboratory of Phytochemistry and Natural Medicines, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Man-Wen Zhang
- Key Laboratory of Phytochemistry and Natural Medicines, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Yan-Chun Liu
- Key Laboratory of Phytochemistry and Natural Medicines, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Xiao-Nian Li
- Key Laboratory of Phytochemistry and Natural Medicines, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Sheng-Hong Li
- Key Laboratory of Phytochemistry and Natural Medicines, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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2
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Li M, Feng L, Zhang H, Liu YC, Zhou TT, Zheng Y, Guo K, Liu Y, Li SH. Unusual immunosuppressive pyridine-containing bisnor- (c 23), tetranor- (c 21) and pentanor- (c 20) sesterterpenoids from Tibetan Leucosceptrum canum. Org Biomol Chem 2024; 22:3019-3024. [PMID: 38530279 DOI: 10.1039/d4ob00334a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
An unusual pyridine-containing sesterterpenoid, leucosceptrodine (1), and five new nor-leucosceptrane sesterterpenoids, including bisnor- (C23, 2), tetranor- (C21, 3) and pentanor- (C20, 4-6) skeletons, were isolated from the leaves of Tibetan Leucosceptrum canum. Their structures including their absolute configurations were determined by extensive spectroscopic analyses and quantum chemical calculations. A single crystal of one epimer (5) was crystallized from a pair of inseparable epimers, and its structure including its absolute configuration was determined by X-ray crystallographic analysis. The immunosuppressive activities of compounds 1-4 with different potencies were evaluated by inhibiting the secretion of cytokines TNF-α and IL-6 in LPS-induced RAW264.7 macrophages.
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Affiliation(s)
- Man Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Ling Feng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- School of Forestry, Southwest Forestry University, Kunming 650224, P. R. China
| | - Han Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Ting-Ting Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Zheng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
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3
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Li T, Li H, Zhou TT, Zheng Y, Li SH. Syntheses of Linear Biosynthetic C 25-Precursors of Leucosceptroids. J Org Chem 2024; 89:3652-3656. [PMID: 38353480 DOI: 10.1021/acs.joc.3c02796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
An efficient synthetic approach was developed and applied to the syntheses of four linear biosynthetic C25-precursors of leucosceptroids. The synthesis features a Julia-Kocienski olefination and a late-stage bioinspired photo-oxidation as key steps. The immunosuppressive effects of all synthetic compounds on mouse T cells and macrophage RAW264.7 were determined.
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Affiliation(s)
- Tao Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P. R. China
| | - Hao Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P. R. China
| | - Ting-Ting Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Zheng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, P. R. China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, P. R. China
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4
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Guo K, Zhou TT, Luo SH, Liu YC, Liu Y, Li SH. Leucosceptrane Sesterterpenoids as a New Type of Natural Immunosuppressive Agents in Treating Sepsis. J Med Chem 2024; 67:513-528. [PMID: 38150591 DOI: 10.1021/acs.jmedchem.3c01759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Intragastric administration of the total sesterterpenoid extract (TSE) of medicinal plant Leucosceptrum canum at 2.5 g/kg dose protected mice from LPS-induced sepsis. Phytochemical investigation led to the isolation and identification of 47 leucosceptrane sesterterpenoids (1-47) including 30 new compounds (1-30) with complicated oxygenation patterns. Biological screening indicated their immunosuppressive activity via inhibiting IFN-γ secretion and/or proliferation of T cells with different potencies. Mechanism study of compounds 9, 25, and 32 revealed that they inhibited the activations of AKT-mTOR, JNK, p38 MAPK or ERK pathway in T cells and macrophages. In addition, compounds 9 and 25 induced G0/G1 cell arrest of T cells. The major component, leucosceptroid N (32), significantly lowered the levels of IL-6 and TNF-α in peripheral blood serum, and ameliorated the multiorgan damages of LPS-induced sepsis mice at 25 mg/kg dose. These findings suggest that leucosceptrane sesterterpenoids are a new type of potential immunosuppressive agents for sepsis treatment.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Ting-Ting Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shi-Hong Luo
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
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5
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Luo SH, Hua J, Liu Y, Li SH. The Chemical Ecology of Plant Natural Products. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2024; 124:57-183. [PMID: 39101984 DOI: 10.1007/978-3-031-59567-7_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
Plants are excellent chemists with an impressive capability of biosynthesizing a large variety of natural products (also known as secondary or specialized metabolites) to resist various biotic and abiotic stresses. In this chapter, 989 plant natural products and their ecological functions in plant-herbivore, plant-microorganism, and plant-plant interactions are reviewed. These compounds include terpenoids, phenols, alkaloids, and other structural types. Terpenoids usually provide direct or indirect defense functions for plants, while phenolic compounds play important roles in regulating the interactions between plants and other organisms. Alkaloids are frequently toxic to herbivores and microorganisms, and can therefore also provide defense functions. The information presented should provide the basis for in-depth research of these plant natural products and their natural functions, and also for their further development and utilization.
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Affiliation(s)
- Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Panlong District, Kunming, 650201, Yunnan Province, P. R. China
| | - Juan Hua
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Dongling Road 120, Shenhe District, Shenyang, 110866, Liaoning Province, P. R. China
| | - Yan Liu
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, LiuTai Avenue 1166, Wenjiang District, Chengdu, 611137, Sichuan Province, P. R. China.
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Panlong District, Kunming, 650201, Yunnan Province, P. R. China.
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6
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Shakour N, Mohadeszadeh M, Iranshahi M. Biomimetic Synthesis of Biologically Active Natural Products: An Updated Review. Mini Rev Med Chem 2024; 24:3-25. [PMID: 37073153 DOI: 10.2174/1389557523666230417083143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/15/2022] [Accepted: 11/22/2022] [Indexed: 04/20/2023]
Abstract
BACKGROUND Natural products have optical activities with unusual structural characteristics or specific stereoselectivity, mostly including spiro-ring systems or quaternary carbon atoms. Expensive and time-consuming methods for natural product purification, especially natural products with bioactive properties, have encouraged chemists to synthesize those compounds in laboratories. Due to their significant role in drug discovery and chemical biology, natural products have become a major area of synthetic organic chemistry. Most medicinal ingredients available today are healing agents derived from natural resources, such as plants, herbs, and other natural products. METHODS Materials were compiled using the three databases of ScienceDirect, PubMed, and Google Scholar. For this study, only English-language publications have been evaluated based on their titles, abstracts, and full texts. RESULTS Developing bioactive compounds and drugs from natural products has remained challenging despite recent advances. A major challenge is not whether a target can be synthesized but how to do so efficiently and practically. Nature has the ability to create molecules in a delicate but effective manner. A convenient method is to imitate the biogenesis of natural products from microbes, plants, or animals for synthesizing natural products. Inspired by the mechanisms occurring in the nature, synthetic strategies facilitate laboratory synthesis of natural compounds with complicated structures. CONCLUSION In this review, we have elaborated on the recent syntheses of natural products conducted since 2008 and provided an updated outline of this area of research (Covering 2008-2022) using bioinspired methods, including Diels-Alder dimerization, photocycloaddition, cyclization, and oxidative and radical reactions, which will provide an easy access to precursors for biomimetic reactions. This study presents a unified method for synthesizing bioactive skeletal products.
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Affiliation(s)
- Neda Shakour
- Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Manijeh Mohadeszadeh
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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7
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Jing SX, Fu R, Li CH, Hugelshofer CL, Shi YM, Luo SH, Liu YC, Liu Y, Li SH. Discovery of Unusual Sesterterpenoids from Colquhounia coccinea var. mollis and Their Metabolic Implications. JOURNAL OF NATURAL PRODUCTS 2023; 86:2468-2473. [PMID: 37939268 DOI: 10.1021/acs.jnatprod.3c00553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Three unusual sesterterpenoids featuring unprecedented rearranged colquhounane (C25) and tetranorcolquhounane (C21) frameworks, colquhounoids E (1) and F (3) and norcolquhounoid F (2), were isolated from a Lamiaceae medicinal plant Colquhounia coccinea var. mollis. Their structures were elucidated by spectroscopic analysis and quantum chemical calculations. A biomimetic inspired regioselective cyclopropane cleavage was achieved under acidic conditions. The immunosuppressive activities of these new sesterterpenoids were also evaluated.
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Affiliation(s)
- Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Ran Fu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Chun-Huan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Cedric L Hugelshofer
- Department of Discovery Chemistry, Merck & Co., Inc., South San Francisco, California 94080, United States
| | - Yi-Ming Shi
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
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8
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Liu Y, Zhou YY, Luo SH, Guo K, Zhang MW, Jing SX, Li CH, Hua J, Li SH. Labdane diterpenoids from the heartwood of Leucosceptrum canum that impact on root growth and seed germination of Arabidopsis thaliana. PHYTOCHEMISTRY 2023; 206:113531. [PMID: 36464100 DOI: 10.1016/j.phytochem.2022.113531] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Eleven undescribed diterpenoids possessing labdane, 3,18-cyclo-labdane, 19 (4 → 3)-labdane and 12-nor-labdane skeletons, named leucolactones A-K, were isolated from the heartwood of a large woody Lamiaceae plant, Leucosceptrum canum. Their structures were determined by NMR, MS, and in the case of leucolactones A by single crystal X-ray diffraction analysis. Plausible biosynthetic pathway of leucolactones were proposed. Leucolactones showed significant inhibitory effects against seed germination and root elongation of Arabidopsis thaliana in the Petri dish bioassay. Among them, the diastereomeric leucolactones G and H were the most potent, with EC50 values for root elongation of 6.53 ± 1.35 and 9.75 ± 1.25 μM, respectively. The preliminary structure-activity relationship of leucolactones was discussed. The increase of auxin reporter activity in A. thaliana DR5::GUS roots by leucolactone H was observed, indicating that leucolactones altered auxin accumulation and distribution. These findings suggested that leucolactones might be involved in regulation of plant growth and development through altering auxin accumulation and distribution, presumably contributing to the heartwood formation in L. canum.
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Affiliation(s)
- Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yan-Ying Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Man-Wen Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Chun-Huan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Juan Hua
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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9
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Wang N, Hua J, Fu Y, An J, Chen X, Wang C, Zheng Y, Wang F, Ji Y, Li Q. Updated perspective of EPAS1 and the role in pulmonary hypertension. Front Cell Dev Biol 2023; 11:1125723. [PMID: 36923253 PMCID: PMC10008962 DOI: 10.3389/fcell.2023.1125723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/14/2023] [Indexed: 03/03/2023] Open
Abstract
Pulmonary hypertension (PH) is a group of syndromes characterized by irreversible vascular remodeling and persistent elevation of pulmonary vascular resistance and pressure, leading to ultimately right heart failure and even death. Current therapeutic strategies mainly focus on symptoms alleviation by stimulating pulmonary vessel dilation. Unfortunately, the mechanism and interventional management of vascular remodeling are still yet unrevealed. Hypoxia plays a central role in the pathogenesis of PH and numerous studies have shown the relationship between PH and hypoxia-inducible factors family. EPAS1, known as hypoxia-inducible factor-2 alpha (HIF-2α), functions as a transcription factor participating in various cellular pathways. However, the detailed mechanism of EPAS1 has not been fully and systematically described. This article exhibited a comprehensive summary of EPAS1 including the molecular structure, biological function and regulatory network in PH and other relevant cardiovascular diseases, and furthermore, provided theoretical reference for the potential novel target for future PH intervention.
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Affiliation(s)
- Na Wang
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Jing Hua
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Yuhua Fu
- Department of Pulmonary and Critical Care Medicine, Central Hospital of Jiading District, Shanghai, China
| | - Jun An
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiangyu Chen
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Chuancui Wang
- Department of Pulmonary and Critical Care Medicine, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, China
| | - Yanghong Zheng
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Feilong Wang
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Yingqun Ji
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
| | - Qiang Li
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital Affiliated by Tongji University, Shanghai, China
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10
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Chen Z, Chen X, Tang Y, Zhou Y, Deng H, He J, Liu Y, Zhao Z, Cui H. Linderasesterterpenoids A and B: Two 7-Cyclohexyldecahydroazulene Carbon Skeleton Sesterterpenoids Isolated from the Root of Lindera glauca. Org Lett 2022; 24:3717-3720. [PMID: 35559688 DOI: 10.1021/acs.orglett.2c01364] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two novel sesterterpenoids linderasesterterpenoids A (1) and B (2) with an unprecedented 7-cyclohexyldecahydroazulene carbon skeleton isolated from the root of Lindera glauca. Their structures were elucidated by X-ray diffraction, quantum chemical calculations, and spectroscopic methods. The biogenetic pathway for 1 and 2 is proposed. In the bioassay, linderasesterterpenoids A and B showed good inhibitory activities against LPS-induced NO production in RAW 264.7 cells compared to a positive control.
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Affiliation(s)
- Zelin Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaocong Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yuqian Tang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yuwei Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Huimei Deng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jingxin He
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yena Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, China
| | - Zhongxiang Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Hui Cui
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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11
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Guo K, Luo SH, Guo D, Li DS, Hua J, Liu YC, Liu Y, Li SH. A Monocarbocyclic Sesterterpenoid Biosynthetic Precursor of Leucosceptroids from Leucosceptrum canum and Its Metabolic Isomerization by a Specialist Insect. Org Chem Front 2022. [DOI: 10.1039/d2qo00138a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pre-leucosceptroid (1), a rare monocarbocyclic sesterterpenoid featuring a cyclopentane ring with a terminal furan moiety, was isolated from the leaves of Leucosceptrum canum. Discovery of 1 suggested a two-step cyclization...
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12
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Sun P, Ao J, Qiao T, Wu S, Liang G. Synthetic Studies toward Leucosceptroid Family of Natural Products. J Org Chem 2021; 86:11040-11052. [PMID: 33410324 DOI: 10.1021/acs.joc.0c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Leucosceptroids are sesterterpenoids with potent antifeedant and antifungal activities. In this paper, efforts on two synthetic strategies toward stereoselective total synthesis of the leucosceptroid family of natural products are reported. Intramolecular addition cyclization strategy could lead to a stereochemically mismatched core structure, while intermolecular addition/ring-closing metathesis cyclization strategy successfully furnished an advanced common intermediate bearing eight contiguous stereogenic centers, including three tetra-substituted ones, which fully matches all the stereochemistry on the tricyclic framework in leucosceptroid H. Late-stage transformation of this intermediate to leucosceptroid H encountered difficulty in oxidizing the secondary hydroxyl group to a carbonyl group in the target. Instead of the desired oxidation, an interesting tricyclic spiral product originating from a C-C bond cleavage was observed.
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Affiliation(s)
- Peng Sun
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Junli Ao
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Tianjiao Qiao
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shuming Wu
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Guangxin Liang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Guo K, Liu YC, Liu Y, Zhang H, Li WY, Shi QM, Li XN, Zeng F, Li SH. Immunosuppressive gentianellane-type sesterterpenoids from the traditional Uighur medicine Gentianella turkestanorum. PHYTOCHEMISTRY 2021; 187:112780. [PMID: 33915419 DOI: 10.1016/j.phytochem.2021.112780] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Whole plants of Gentianella turkestanorum are commonly used as a traditional Uighur medicine. A phytochemical investigation led to the isolation of eight undescribed gentianellane-type sesterterpenoids (18-epi-nitidasin, gentianelloids D-F, and 18-epi-gentianelloids C-F), one undescribed 11,12-seco-gentianellane (18-epi-alborosin), and three known analogs (nitidasin, gentianelloid C and alborosin) among which gentianelloid C was found for the first time from a natural source. The structures of these compounds were elucidated by extensive spectroscopic analyses (including 1D and 2D NMR, HRMS, IR, and specific rotation) and in the case of 18-epi-gentianelloid C by the single-crystal X-ray diffraction analysis. A putative biosynthetic route for these sesterterpenoids was proposed. The immunosuppressive activity of the isolated compounds was also evaluated by their ability to inhibit the proliferation of T cells and T cell cytokine IFN-γ production. Nitidasin suppressed IFN-γ production with an IC50 value of 16.50 μM, while gentianelloid F and alborosin inhibited the proliferation of and IFN-γ production in T cells with IC50 values of 12.40-14.66 μM.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Han Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Wen-Yuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Qiu-Mei Shi
- College of Tea and Food Technology, Wuyi University, Wuyishan, 354300, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Fang Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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Guo K, Liu Y, Li SH. The untapped potential of plant sesterterpenoids: chemistry, biological activities and biosynthesis. Nat Prod Rep 2021; 38:2293-2314. [PMID: 34114591 DOI: 10.1039/d1np00021g] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: 1969 up to 2021Sesterterpenoids, biosynthetically derived from the precursor, namely geranylfarnesyl diphosphate (GFDP) are amongst the rarest of all isoprenoids with approximately 1300 compounds known. Most sesterterpenoids originate from marine organisms (especially sponges), while only about 15% of these compounds are isolated from several families of plants such as Lamiaceae, Gentianaceae, and Nartheciaceae. Many plant sesterterpenoids possess highly oxygenated and complex cyclic skeletons and exhibit remarkable biological activities involving cytotoxic, anti-inflammatory, antimicrobial, and antifeedant properties. Thus, due to their intrinsic chemical complexity and intriguing biological profiles, plant sesterterpenoids have attracted continuing interest from both chemists and biologists. However, the biosynthesis and distribution of sesterterpenoids in the plant kingdom still remain elusive, although substantial progress has been achieved in recent years. This review provides an overall coverage of sesterterpenoids originating from plant sources, followed by a classification of their chemical skeletons, which summarizes the distribution, chemistry, biological activities, biosynthesis and evolution of plant sesterterpenoids, aiming at strengthening the research efforts toward the untapped great potential of these unique natural product resources.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China. and State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China. and State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
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Teng LL, Mu RF, Liu YC, Xiao CJ, Li DS, Gao JX, Guo K, Li XN, Liu Y, Zeng F, Li SH. Immunosuppressive and Adipogenesis Inhibitory Sesterterpenoids with a Macrocyclic Ether System from Eurysolen gracilis. Org Lett 2021; 23:2232-2237. [PMID: 33667109 DOI: 10.1021/acs.orglett.1c00369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lin-Lin Teng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Rong-Fang Mu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Chao-Jiang Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- Institute of Materia Medica & College of Pharmacy, Dali University, Dali 671000, P. R. China
| | - De-Sen Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian-Xiong Gao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Fang Zeng
- Acupuncture & Tuina School, The 3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- State Key Laboratory of Southwestern Chinese Medicine Resources, and Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China
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Sun P, Zhang C, Qiao T, Ao J, Wu S, Liang G. Stereoselective Construction of the Highly Congested Tricyclic Core Structure in Leucosceptroid H. Org Lett 2020; 22:4848-4851. [PMID: 32492347 DOI: 10.1021/acs.orglett.0c01672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Leucosceptroids are sesterterpenoids with potent antifeedant and antifungal activities. An efficient stereoselective construction of the highly congested [5,6,5] tricyclic framework of leucosceptroid H is presented. This framework bearing eight contiguous stereogenic centers, including three tetrasubstituted ones, could serve as a common intermediate for the collective total synthesis of the leucosceptroid family of natural products.
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Affiliation(s)
- Peng Sun
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Chi Zhang
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Tianjiao Qiao
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Junli Ao
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shuming Wu
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Guangxin Liang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Leucosceptroid B from glandular trichomes of Leucosceptrum canum reduces fat accumulation in Caenorhabditis elegans through suppressing unsaturated fatty acid biosynthesis. Chin J Nat Med 2020; 17:892-899. [PMID: 31882042 DOI: 10.1016/s1875-5364(19)30109-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Indexed: 12/14/2022]
Abstract
Obesity that is highly associated with numerous metabolic diseases has become a global health issue nowdays. Plant sesterterpenoids are an important group of natural products with great potential; thus, their bioactivities deserve extensive exploration. RNA-seq analysis indicated that leucosceptroid B, a sesterterpenoid previously discovered from the glandular trichomes of Leucosceptrum canum, significantly regulated the expression of 10 genes involved in lipid metabolism in Caenorhabditis elegans. Furthermore, leucosceptroid B was found to reduce fat storage, and downregulate the expression of two stearoyl-CoA desaturase (SCD) genes fat-6 and fat-7, and a fatty acid elongase gene elo-2 in wild-type C. elegans. In addition, leucosceptroid B significantly decreased fat accumulation in both fat-6 and fat-7 mutant worms but did not affect the fat storage of fat-6; fat-7 double mutant. These findings indicated that leucosceptroid B reduced fat storage depending on the downregulated expression of fat-6, fat-7 and elo-2 and thereby inhibiting the biosynthesis of the corresponding unsaturated fatty acid. These findings provide new insights into the development and utilization of plant sesterterpenoids as potential antilipemic agents.
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Geng H, Liu YC, Li DS, Xiao CJ, Liu Y, Li XN, Li SH. Unusual glycosidic labdane diterpenoids with cytotoxicity from the root of Phlomoides betonicoides. PHYTOCHEMISTRY 2020; 173:112325. [PMID: 32113064 DOI: 10.1016/j.phytochem.2020.112325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/15/2020] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Chemical investigation on the root of Phlomoides betonicoides led to the isolation of six undescribed diterpenoid glycosides, phlomoidesides A-F, along with two known ones using various chromatographic techniques. The structures of these compounds were determined by extensive spectroscopic analyses (including 1D, 2D-NMR and HRMS), single crystal X-ray diffraction, and calculated 13C NMR. The glycoside modifications of phlomoidesides A-F are rare in natural products, and a plausible biosynthetic pathway for these unusual glycosides was proposed. Phlomoidesides A, D, F, and phlomisosides V, Ш were cytotoxic against three human tumor cell lines, NCI-H1975, HepG2 and MCF-7, with IC50 values ranging from 7.5 to 75.7 μM. Phlomoideside B only showed weak cytotoxicity against NCI-H1975, with IC50 of 53.0- μM.
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Affiliation(s)
- Hao Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - De-Sen Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Chao-Jiang Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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19
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Guo K, Liu Y, Luo SH, Liu YC, Li DS, Li WY, Li SH. Detoxification of Plant Aromatic Abietanoids via Cleavage of the Benzene Ring into 11,12- Seco-diterpene Polyenes by a Specialist Insect of Leucosceptrum canum. Org Lett 2020; 22:126-129. [PMID: 31829019 DOI: 10.1021/acs.orglett.9b04044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Leaves of Leucosceptrum canum harbor abundant toxic aromatic abietanoids, and they are rarely attacked by insect herbivores, except for the larvae of Nacna malachitis. The excrements of the insect that fed on L. canum leaves were investigated, leading to the isolation and identification of two unprecedented 11,12-seco-abietane diterpene polyenes: nacnabietanins A (1) and B (2). This discovery heralds a unique detoxification mechanism of plant aromatic abietanoids by insects through enzymatic cleavage of stable benzene rings into more easily degraded polyenes.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,College of Chemistry and Pharmaceutical Engineering , Nanyang Normal University , Nanyang 473061 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
| | - De-Sen Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Wen-Yuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China.,University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , P. R. China
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Leucoflavonine, a new bioactive racemic flavoalkaloid from the leaves of Leucosceptrum canum. Bioorg Med Chem 2019; 27:442-446. [PMID: 30579802 DOI: 10.1016/j.bmc.2018.12.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/11/2018] [Accepted: 12/14/2018] [Indexed: 01/23/2023]
Abstract
A new flavoalkaloid racemate, leucoflavonine (1), together with its flavonoid precursor pectolinarigenin (2), was isolated from the leaves of Leucosceptrum canum collected from Tibet. Its structure was established by comprehensive spectroscopic analysis. Chrial separation of the enantiomers of 1 was achieved, and their absolute configurations were determined as S-(+)- and R-(-)-leucoflavonines ((+)-1a and (-)-1b) by comparison of their computational and experimental optical rotations. Biological assays indicated that both (+)-1a and (-)-1b exhibited inhibitory activity against acetylchlorinesterase (AChE) in vitro (IC50 = 68.0 ± 8.6 and 18.3 ± 1.8 μM, respectively). Moreover, (-)-1b displayed cytotoxicity against human hepatoma cells HepG2 (IC50 = 52.9 ± 3.6 μM), and inhibited the production of interleukelin-2 (IL-2) in Jurkat cells (IC50 = 16.5 ± 0.9 μM), while (+)-1a showed no obvious activity in these assays.
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Abstract
Total syntheses of biologically and structurally fascinating sesterterpenoids published between Jan. 2012 and Jan. 2018 are summarized and discussed here.
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Affiliation(s)
- Yuye Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
- Department of Chemistry and Shenzhen Grubbs Institute
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Shaoping Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute
- Southern University of Science and Technology
- Shenzhen
- China
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Guo K, Liu YC, Liu Y, Luo SH, Li WY, Li XN, Li SH. Diversified abietane family diterpenoids from the leaves of Leucosceptrum canum and their cytotoxic activity. PHYTOCHEMISTRY 2019; 157:43-52. [PMID: 30366203 DOI: 10.1016/j.phytochem.2018.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/29/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Twenty-four diterpenoids of abietane family, including thirteen undescribed compounds and eleven known ones, were isolated from the leaves of Leucosceptrum canum. Their structures were elucidated by comprehensive spectroscopic analyses (including 1D and 2D-NMR and HRMS), and in the case of 15-hydroxy-abieta-8,11,13-trien-3-one by single-crystal X-ray diffraction. Their frameworks are highly diversified, involving normal abietane, 9,10-epoxy-9,10-seco-abietane, 18(4 → 3)-abeo-abietane, 3,4-seco-18(4 → 3)-abeo-abietane, and 16-nor-abietane. Selected compounds were evaluated for their cytotoxic activity against three human tumor cell lines, NCI-H1975, HepG2 and MCF-7. Among them, 3β-hydroxy-abieta-8,13-diene, 3β-hydroxy-abieta-8,11,13,15-tetraene, and 3β-hydroxy-9,10-epoxy-9,10-seco-abieta-8,11,13-triene exhibited moderate cytotoxicity against all three cell lines with IC50 values ranging from 8.11 to 50.73 μM, while 3α-hydroxy-abieta-8,11,13,15-tetraene, 3β-hydroxy-abieta-8,11,13,15-tetraen-7-one, and 15-hydroxy-18(4 → 3)-abeo-abieta-3,8,11,13-tetraene were selectively active with IC50 values ranging from 28.80 to 71.29 μM.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China
| | - Wen-Yuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China; Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, PR China.
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Huang AC, Kautsar SA, Hong YJ, Medema MH, Bond AD, Tantillo DJ, Osbourn A. Unearthing a sesterterpene biosynthetic repertoire in the Brassicaceae through genome mining reveals convergent evolution. Proc Natl Acad Sci U S A 2017; 114:E6005-E6014. [PMID: 28673978 PMCID: PMC5530694 DOI: 10.1073/pnas.1705567114] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Sesterterpenoids are a rare terpene class harboring untapped chemodiversity and bioactivities. Their structural diversity originates primarily from the scaffold-generating sesterterpene synthases (STSs). In fungi, all six known STSs are bifunctional, containing C-terminal trans-prenyltransferase (PT) and N-terminal terpene synthase (TPS) domains. In plants, two colocalized PT and TPS gene pairs from Arabidopsis thaliana were recently reported to synthesize sesterterpenes. However, the landscape of PT and TPS genes in plant genomes is unclear. Here, using a customized algorithm for systematically searching plant genomes, we reveal a suite of physically colocalized pairs of PT and TPS genes for the biosynthesis of a large sesterterpene repertoire in the wider Brassicaceae. Transient expression of seven TPSs from A. thaliana, Capsella rubella, and Brassica oleracea in Nicotiana benthamiana yielded fungal-type sesterterpenes with tri-, tetra-, and pentacyclic scaffolds, and notably (-)-ent-quiannulatene, an enantiomer of the fungal metabolite (+)-quiannulatene. Protein and structural modeling analysis identified an amino acid site implicated in structural diversification. Mutation of this site in one STS (AtTPS19) resulted in premature termination of carbocation intermediates and accumulation of bi-, tri-, and tetracyclic sesterterpenes, revealing the cyclization path for the pentacyclic sesterterpene (-)-retigeranin B. These structural and mechanistic insights, together with phylogenetic analysis, suggest convergent evolution of plant and fungal STSs, and also indicate that the colocalized PT-TPS gene pairs in the Brassicaceae may have originated from a common ancestral gene pair present before speciation. Our findings further provide opportunities for rapid discovery and production of sesterterpenes through metabolic and protein engineering.
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Affiliation(s)
- Ancheng C Huang
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Satria A Kautsar
- Bioinformatics Group, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Young J Hong
- Department of Chemistry, University of California, Davis, CA 95616
| | - Marnix H Medema
- Bioinformatics Group, Wageningen University, 6708 PB Wageningen, The Netherlands
| | - Andrew D Bond
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, CA 95616
| | - Anne Osbourn
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom;
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Shao J, Chen QW, Lv HJ, He J, Liu ZF, Lu YN, Liu HL, Wang GD, Wang Y. (+)-Thalianatriene and (−)-Retigeranin B Catalyzed by Sesterterpene Synthases from Arabidopsis thaliana. Org Lett 2017; 19:1816-1819. [DOI: 10.1021/acs.orglett.7b00586] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie Shao
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Qing-Wen Chen
- State
Key Laboratory of Plant Genomics, Institute of Genetics and Developmental
Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Hua-Jun Lv
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Juan He
- State
Key Laboratory of Plant Genomics, Institute of Genetics and Developmental
Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Zhi-Feng Liu
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yan-Na Lu
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hai-Li Liu
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Guo-Dong Wang
- State
Key Laboratory of Plant Genomics, Institute of Genetics and Developmental
Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yong Wang
- Key
Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular
Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai
Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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25
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Abstract
Some recent examples of conceptually different bioinspired total syntheses of complex terpenoids are presented that highlight the numerous benefits of pursuing bioinspired strategies.
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Affiliation(s)
- Cedric L. Hugelshofer
- Department of Chemistry and Pharmacy
- Ludwig-Maximilians-University Munich
- 81377 Munich
- Germany
| | - Thomas Magauer
- Department of Chemistry and Pharmacy
- Ludwig-Maximilians-University Munich
- 81377 Munich
- Germany
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Adrian J, Gross LJ, Stark CBW. The direct oxidative diene cyclization and related reactions in natural product synthesis. Beilstein J Org Chem 2016; 12:2104-2123. [PMID: 27829917 PMCID: PMC5082725 DOI: 10.3762/bjoc.12.200] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 09/07/2016] [Indexed: 12/17/2022] Open
Abstract
The direct oxidative cyclization of 1,5-dienes is a valuable synthetic method for the (dia)stereoselective preparation of substituted tetrahydrofurans. Closely related reactions start from 5,6-dihydroxy or 5-hydroxyalkenes to generate similar products in a mechanistically analogous manner. After a brief overview on the history of this group of transformations and a survey on mechanistic and stereochemical aspects, this review article provides a summary on applications in natural product synthesis. Moreover, current limitations and future directions in this area of chemistry are discussed.
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Affiliation(s)
- Juliane Adrian
- Fachbereich Chemie, Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Leona J Gross
- Fachbereich Chemie, Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Christian B W Stark
- Fachbereich Chemie, Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Ma FW, Xia B, Luo SH, Li SH, Zhou Y. Analysis of the lithiated leucosceptroids from Leucosceptrum canum to facilitate their identification and differentiation by electrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30 Suppl 1:100-110. [PMID: 27539423 DOI: 10.1002/rcm.7632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Leucosceptroids, isolated from Leucosceptrum canum (L. canum), are sesterterpenoids with novel molecular scaffolds which possess potent antifeedant activities. Their molecular scaffolds comprise a 5,6,5-framework with a great diversity due to different hydroxylation and substituent positions. The biological activities of leucosceptroids are affected by the subtle structural differences. The structural characterization and differentiation of the leucosceptroid isomers are of great importance. METHODS Firstly, different kinds of cation adducts of leucosceptroids were examined by adding alkali metal ions to the solution, and the lithiated adducts of leucosceptroid were found to be readily formed and yielded characteristic fragment ions under collision-induced dissociation (CID). Then, a systematic mass spectrometric investigation of the [M + Li](+) ions was carried out to clarify their characteristic fragment pathways by electrospray ionization quadrupole time-of-flight-type tandem mass spectrometry (ESI-QTOF-MS/MS). The proposed fragmentation pathways were confirmed through ion trap ESI-MS(n) (n ≥ 3) spectra. Finally, the proposed MS/MS method was applied to investigate the extracts of L. canum. RESULTS A specific fragmentation pathway of the lithiated adduct, which leads to the production of diagnostic ions of leucosceptroids, was observed. This fragmentation is initiated by cleavage of the C-ring and leads to formation of two types of ions by further dissociation. Both pathways could yield characteristic fragment ions, which could be used to define the substituents at the skeletal structure and at the C-ring. The representative characteristic fragmentations of [M + Li](+) ions and the proposed fragmentation pathways were successfully adopted to investigate the L. canum extracts, and a total of eleven leucosceptroids were identified or tentatively characterized. CONCLUSIONS The characteristic fragmentation pathways of [M + Li](+) species of leucosceptroid isomers were proposed. Three types of leucosceptroid isomers were successfully differentiated. Eleven leucosceptroids were characterized from L. canum extracts. The fragmentation knowledge will facilitate the analysis of leucosceptroids and other sesterterpenoids in future research. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Feng-Wei Ma
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Bing Xia
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yan Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
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Kuang C, Jing SX, Liu Y, Luo SH, Li SH. Drimane Sesquiterpenoids and Isochromone Derivative from the Endophytic Fungus Pestalotiopsis sp. M-23. NATURAL PRODUCTS AND BIOPROSPECTING 2016; 6:155-60. [PMID: 27038619 PMCID: PMC5385658 DOI: 10.1007/s13659-016-0094-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 03/17/2016] [Indexed: 05/27/2023]
Abstract
Three new drimane sesquiterpenoids (1-3) together with the known 2α-hydroxyisodrimeninol (4), and a new isochromone derivative (5), were obtained from the solid cultures of fungal strain Pestalotiopsis sp. M-23, an endophytic fungus isolated from the leaves of Leucosceptrum canum (Labiatae). Their structures were determined by comprehensive 1D and 2D NMR, and MS analyses. The metabolites were evaluated for their antibacterial activities, and compound 3 showed weak inhibitory activity against Bacillus subtilis.
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Affiliation(s)
- Ce Kuang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, People's Republic of China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, People's Republic of China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, People's Republic of China.
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, People's Republic of China.
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31
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Abe H, Horii Y, Hagiwara M, Kobayashi T, Ito H. Stereoselective synthesis of a highly oxygenated decahydrocyclopenta[g]chromene derivative: the common tricyclic framework of leucosceptrine and leucosesterterpenone. Chem Commun (Camb) 2015; 51:6108-10. [PMID: 25744573 DOI: 10.1039/c5cc00879d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stereoselective construction of the highly oxygenated decahydrocyclopenta[g]chromene skeleton, which is the tricyclic core of leucosceptrine, which possesses prolylendopeptidase inhibitory activity, and leucosesterterpenone, which exhibits anti-angiogenic activity, from Leucosceptrum canum, was achieved.
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Affiliation(s)
- Hideki Abe
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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32
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Hugelshofer CL, Magauer T. Total Synthesis of the Leucosceptroid Family of Natural Products. J Am Chem Soc 2015; 137:3807-10. [DOI: 10.1021/jacs.5b02021] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cedric L. Hugelshofer
- Department
of Chemistry and
Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse
5-13, 81377 Munich, Germany
| | - Thomas Magauer
- Department
of Chemistry and
Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse
5-13, 81377 Munich, Germany
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33
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Luo SH, Hugelshofer CL, Hua J, Jing SX, Li CH, Liu Y, Li XN, Zhao X, Magauer T, Li SH. Unraveling the Metabolic Pathway in Leucosceptrum canum by Isolation of New Defensive Leucosceptroid Degradation Products and Biomimetic Model Synthesis. Org Lett 2014; 16:6416-9. [PMID: 25474304 DOI: 10.1021/ol503230s] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shi-Hong Luo
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Cedric L. Hugelshofer
- Department
of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandstrasse
5-13, 81377 Munich, Germany
| | - Juan Hua
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Shu-Xi Jing
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Chun-Huan Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Yan Liu
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Xiao-Nian Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Xu Zhao
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Thomas Magauer
- Department
of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandstrasse
5-13, 81377 Munich, Germany
| | - Sheng-Hong Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
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34
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Guo S, Liu J, Ma D. Total Synthesis of Leucosceptroids A and B. Angew Chem Int Ed Engl 2014; 54:1298-301. [DOI: 10.1002/anie.201410134] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Indexed: 11/06/2022]
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Hugelshofer CL, Magauer T. A general entry to antifeedant sesterterpenoids: total synthesis of (+)-norleucosceptroid A, (-)-norleucosceptroid B, and (-)-leucosceptroid K. Angew Chem Int Ed Engl 2014; 53:11351-5. [PMID: 25196778 DOI: 10.1002/anie.201407788] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/06/2022]
Abstract
The first asymmetric total synthesis of the antifeedant terpenoids (+)-norleucosceptroid A, (-)-norleucosceptroid B, and (-)-leucosceptroid K has been accomplished. This highly concise synthetic route was guided by our efforts to develop a platform for the collective synthesis of a whole family of antifeedant natural products. The synthesis features a Hauser-Kraus-type annulation followed by an unprecedented, highly efficient intramolecular dilactol aldol-type condensation reaction to produce the 5,6,5 skeleton. The developed synthetic route proceeds for norleucosceptroid A and B in 16 steps (longest linear sequence) from known compounds.
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Affiliation(s)
- Cedric L Hugelshofer
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, 81377 Munich (Germany)
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37
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Hugelshofer CL, Magauer T. A General Entry to Antifeedant Sesterterpenoids: Total Synthesis of (+)-Norleucosceptroid A, (−)-Norleucosceptroid B, and (−)-Leucosceptroid K. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Huang CS, Luo SH, Li YL, Li CH, Hua J, Liu Y, Jing SX, Wang Y, Yang MJ, Li SH. Antifeedant and Antiviral Diterpenoids from the Fresh Roots of Euphorbia jolkinii. NATURAL PRODUCTS AND BIOPROSPECTING 2014; 4:91-100. [PMID: 24859600 PMCID: PMC4004854 DOI: 10.1007/s13659-014-0009-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 03/14/2014] [Indexed: 05/04/2023]
Abstract
The perennial herbaceous plant Euphorbia jolkinii (Euphorbiaceae) is a noxious weed widely distributed in the grasslands of northwestern Yunnan and has greatly threatened the local biodiversity. Phytochemical investigation on the fresh roots of E. jolkinii afforded six new diterpenoids 1, 2, 4-6, and 8, together with fifteen known diterpenoids. Their structures were elucidated on the basis of 1D and 2D NMR and other spectroscopic methods. Casbane, lathyrane, abietane, and ent-kaurane diterpenoids were reported from this plant for the first time. Selected compounds were evaluated for their antifeedant and anti-RSV (respiratory syncytial virus) activities. Compound 2 and ingenol (3) exhibited moderate antifeedant activity against a generalist insect herbivore, Spodoptera exigua, with EC50 values of 17.88 and 17.71 μg/cm(2) respectively. Compound 19 showed significant anti-RSV activity, with 50 % inhibition (IC50) value of 10.0 μM and selective index of 8.0. Compounds 1 and 2 were less active against RSV virus, both with IC50 value of 25 μM, and with selective indices of 1.0 and 3.2 respectively. These findings provided new evidence for the biological functions and utilization of the diversified diterpenoid metabolites in the roots of this rich but harmful plant.
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Affiliation(s)
- Chun-Shuai Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Yao-Lan Li
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou, 510632 China
| | - Chun-Huan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Juan Hua
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Ying Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Min-Jie Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 China
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Cai JY, Chen DZ, Luo SH, Kong NC, Zhang Y, Di YT, Zhang Q, Hua J, Jing SX, Li SL, Li SH, Hao XJ, He HP. Limonoids from Aphanamixis polystachya and their antifeedant activity. JOURNAL OF NATURAL PRODUCTS 2014; 77:472-482. [PMID: 24256462 DOI: 10.1021/np400678h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Eight new aphanamixoid-type aphanamixoids (C-J, 1-8) and six new prieurianin-type limonoids, aphanamixoids K-P (9-14), along with 10 known terpenoids were isolated from Aphanamixis polystachya, and their structures were established by spectroscopic data analysis. Among the new limonoids, 13 compounds exhibited antifeedant activity against the generalist Helicoverpa armigera, a plant-feeding insect, at various concentration levels. In particular, compounds 1, 4, and 5 showed potent activities with EC50 values of 0.017, 0.008, and 0.012 μmol/cm(2), respectively. On the basis of a preliminary structure-activity relationship analysis, some potential active sites in the aphanamixoid-type limonoid molecules are proposed.
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Affiliation(s)
- Jie-Yun Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, Yunnan, People's Republic of China
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40
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Abstract
This article reviews the progress made by Chinese scientists in the field of natural products chemistry in 2011. Selected compounds with unique structural features and/or promising bioactivities are described herein on the basis of structural types.
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41
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Xiao Z, Huang H, Shao C, Xia X, Ma L, Huang X, Lu Y, Lin Y, Long Y, She Z. Asperterpenols A and B, New Sesterterpenoids Isolated from a Mangrove Endophytic Fungus Aspergillus sp. 085242. Org Lett 2013; 15:2522-5. [PMID: 23642191 DOI: 10.1021/ol401005j] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ze’en Xiao
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Huarong Huang
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Changlun Shao
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Xuekui Xia
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Lin Ma
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Xishan Huang
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Yongjun Lu
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Yongcheng Lin
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Yuhua Long
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
| | - Zhigang She
- School of Chemistry and Chemical Engineering and School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China, and School of Chemistry and Environment, South China Normal University, 348 West Outer Ring Road, Guangzhou 510006, China
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Li CH, Jing SX, Luo SH, Shi W, Hua J, Liu Y, Li XN, Schneider B, Gershenzon J, Li SH. Peltate Glandular Trichomes of Colquhounia coccinea var. mollis Harbor a New Class of Defensive Sesterterpenoids. Org Lett 2013; 15:1694-7. [PMID: 23517125 DOI: 10.1021/ol4004756] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Chun-Huan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Wei Shi
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Juan Hua
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bernd Schneider
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jonathan Gershenzon
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745 Jena, Germany, and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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43
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Luo SH, Hua J, Niu XM, Liu Y, Li CH, Zhou YY, Jing SX, Zhao X, Li SH. Defense sesterterpenoid lactones from Leucosceptrum canum. PHYTOCHEMISTRY 2013; 86:29-35. [PMID: 23228599 DOI: 10.1016/j.phytochem.2012.11.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 08/06/2012] [Accepted: 11/14/2012] [Indexed: 06/01/2023]
Abstract
Ten sesterterpenoids, leucosceptroids E-N (1-10), possessing an α,β-unsaturated γ-lactone moiety, were isolated from the leaves and flowers of a woody Labiatae, Leucosceptrum canum. Their structures including relative stereochemistry were determined by comprehensive 1D and 2D NMR, MS, and in the case of 1 and 10, by single crystal X-ray diffraction analyses. This class of unique plant terpenoids was designated as leucosceptrane sesterterpenoids (=leucosceptroids). The potent antifeedant activity of the most abundant compound, leucosceptroid G (3), and a representative compound, leucosceptroid N (10), against the generalist plant-feeding insect Helicoverpa armigera suggested that they might also be defense compounds of L. canum against insects.
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Affiliation(s)
- Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
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44
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45
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Liu B, Zheng G, Liu X, Xu C, Liu J, Wang M. Regio- and stereoselective synthesis of 2-cyclopentenones via a hydrogenolysis-terminated Heck cyclization of β-alkylthio dienones. Chem Commun (Camb) 2013; 49:2201-3. [PMID: 23396498 DOI: 10.1039/c3cc37571d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Bangyu Liu
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China
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46
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Luo SH, Hua J, Li CH, Liu Y, Li XN, Zhao X, Li SH. Unusual antifeedant spiro-sesterterpenoid from the flowers of Leucosceptrum canum. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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Huang X, Song L, Xu J, Zhu G, Liu B. Asymmetric Total Synthesis of Leucosceptroid B. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201208687] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Huang X, Song L, Xu J, Zhu G, Liu B. Asymmetric Total Synthesis of Leucosceptroid B. Angew Chem Int Ed Engl 2012; 52:952-5. [DOI: 10.1002/anie.201208687] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Indexed: 11/06/2022]
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49
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Luo SH, Hua J, Li CH, Jing SX, Liu Y, Li XN, Zhao X, Li SH. New Antifeedant C20 Terpenoids from Leucosceptrum canum. Org Lett 2012; 14:5768-71. [PMID: 23137123 DOI: 10.1021/ol302787c] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Juan Hua
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Chun-Huan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Shu-Xi Jing
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xu Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China, and Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China
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50
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Cai JY, Zhang Y, Luo SH, Chen DZ, Tang GH, Yuan CM, Di YT, Li SH, Hao XJ, He HP. Aphanamixoid A, a Potent Defensive Limonoid, with a New Carbon Skeleton from Aphanamixis polystachya. Org Lett 2012; 14:2524-7. [PMID: 22540189 DOI: 10.1021/ol3008149] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie-Yun Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Yu Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Duo-Zhi Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Gui-Hua Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Chun-Mao Yuan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Ying-Tong Di
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiao-Jiang Hao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Hong-Ping He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
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