1
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Wan Y, Wu H, Xia L, Liu S, Ren Y, Xu H, Zheng C. Sequential Dieckmann cyclization enables the total synthesis of 7- epi-clusianone and 18-hydroxy-7- epi-clusianone. Org Biomol Chem 2024; 22:529-537. [PMID: 38105715 DOI: 10.1039/d3ob01840g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
A unified approach for the construction of the bicyclo[3.3.1]nonane-2,4,9-trione core of polycyclic polyprenylated acylphloroglucinols (PPAPs) was reported. This approach involves a sequential process of two distinct Dieckmann condensation reactions from the linear precursor. Using this method, the divergent total synthesis of the natural products 7-epi-clusianone and 18-hydroxy-7-epi-clusianone and the formal synthesis of sampsonione P were achieved. Additionally, other key steps to realize this strategy include RuCl3-catalyzed oxidative olefin cleavage and Pd-catalyzed Tsuji-Trost decarboxylative allylation. The synthesis indicated that bicyclo[3.3.1]nonane-2,4,9-triones could also be constructed via 6-membered intermediates.
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Affiliation(s)
- Yunhui Wan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Huaimo Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Linhao Xia
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Song Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Yi Ren
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Hongxi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.
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2
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Bailly C, Vergoten G. Anticancer Properties and Mechanism of Action of Oblongifolin C, Guttiferone K and Related Polyprenylated Acylphloroglucinols. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:629-641. [PMID: 34586597 PMCID: PMC8479269 DOI: 10.1007/s13659-021-00320-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/21/2021] [Indexed: 05/06/2023]
Abstract
Polyprenylated acylphloroglucinols represent an important class of natural products found in many plants. Among them, the two related products oblongifolin C (Ob-C) and guttiferone K (Gt-K) isolated from Garcinia species (notably from edible fruits), have attracted attention due to their marked anticancer properties. The two compounds only differ by the nature of the C-6 side chain, prenyl (Gt-K) or geranyl (Ob-C) on the phloroglucinol core. Their origin, method of extraction and biological properties are presented here, with a focus on the targets and pathways implicated in their anticancer activities. Both compounds markedly reduce cancer cell proliferation in vitro, as well as tumor growth and metastasis in vivo. They are both potent inducer of tumor cell apoptosis, and regulation of autophagy flux is a hallmark of their mode of action. The distinct mechanism leading to autophagosome accumulation in cells and the implicated molecular targets are discussed. The specific role of the chaperone protein HSPA8, known to interact with Ob-C, is addressed. Molecular models of Gt-K and Ob-C bound to HSPA8 provide a structural basis to their common HSPA8-binding recognition capacity. The review shed light on the mechanism of action of these compounds, to encourage their studies and potential development.
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Affiliation(s)
- Christian Bailly
- Scientific Consulting Office, OncoWitan, 59290, Lille, Wasquehal, France.
| | - Gérard Vergoten
- Inserm, INFINITE - U1286, Faculté de Pharmacie, University of Lille, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), 3 rue du Professeur Laguesse, BP-83, 59006, Lille, France
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3
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Han L, Xu D, Xi Z, Wu M, Nik Nabil WN, Zhang J, Sui H, Fu W, Zhou H, Lao Y, Xu G, Guo C, Xu H. The Natural Compound Oblongifolin C Exhibits Anticancer Activity by Inhibiting HSPA8 and Cathepsin B In Vitro. Front Pharmacol 2021; 11:564833. [PMID: 33390942 PMCID: PMC7773843 DOI: 10.3389/fphar.2020.564833] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/19/2020] [Indexed: 11/13/2022] Open
Abstract
PPAPs (Polycyclic polyprenylated acylphloroglucinols) are a class of compounds with diverse bioactivities, including anticancer effects. Oblongifolin C (OC) is a PPAP isolated from the plant of Garcinia yunnanensis Hu. We previously discovered that OC induces apoptosis, inhibits autophagic flux, and attenuates metastasis in cancer cells. However, the protein targets and the detailed mechanism of action of OC remain unclear. To identify protein targets of OC, a non-labeled protein fishing assay was performed, and it was found that OC may interact with several proteins, including the heat shock 70 kDa protein 8 (HSPA8). Expanding on our previous studies on protein cathepsin B, this current study applied Surface Plasmon Resonance (SPR) and Isothermal Titration Calorimetry (ITC) to confirm the potential binding affinity between OC and two protein targets. This study highlights the inhibitory effect of OC on HSPA8 in cancer cells under heat shock stress, by specifically inhibiting the translocation of HSPA8. OC also enhanced the interaction between HSPA8, HSP90, and p53, upregulated the expression of p53 and significantly promoted apoptosis in cisplatin-treated cells. Additionally, a flow cytometry assay detected that OC sped up the apoptosis rate in HSPA8 knockdown A549 cells, while overexpression of HSPA8 delayed the OC-induced apoptosis rate. In summary, our results reveal that OC potentially interacts with HSPA8 and cathepsin B and inhibits HSPA8 nuclear translocation and cathepsin B activities, altogether suggesting the potential of OC to be developed as an anticancer drug.
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Affiliation(s)
- Li Han
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Pharmacy, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Danqing Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhichao Xi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Man Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wan Najbah Nik Nabil
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Juan Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hua Sui
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenwei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuanzhi Lao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of National Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Cheng Guo
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Pharmacy, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hongxi Xu
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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4
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Wang L, Wang X, Zhang G, Fu W, Zhang H, Zhou H, Xu H, Zheng C. Strategies towards endo-type B polycyclic polyprenylated acylphloroglucinols: total synthesis of regio-hyperibone L and (+)- epi-clusianone. Org Chem Front 2021. [DOI: 10.1039/d1qo00282a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first and general method for the total synthesis of regio-hyperibone L and (+)-epi-clusianone via domino Dieckmann cyclization was developed.
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Affiliation(s)
- Liping Wang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Xueying Wang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Guocai Zhang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Wenwei Fu
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Hong Zhang
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Hua Zhou
- Shuguang Hospital
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Hongxi Xu
- Shuguang Hospital
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
| | - Changwu Zheng
- School of Pharmacy
- Shanghai University of Traditional Chinese Medicine
- Shanghai 201203
- China
- Key Laboratory of Synthetic Chemistry of Natural Substances
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5
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Bicyclic polyprenylated acylphloroglucinols and their derivatives: structural modification, structure-activity relationship, biological activity and mechanism of action. Eur J Med Chem 2020; 205:112646. [PMID: 32791400 DOI: 10.1016/j.ejmech.2020.112646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/02/2020] [Accepted: 07/04/2020] [Indexed: 12/22/2022]
Abstract
Bicyclic polyprenylated acylphloroglucinols (BPAPs), the principal bioactive benzophenone products isolated from plants of genera Garcinia and Hypericum, have attracted noticeable attention from the synthetic and biological communities due to their fascinating chemical structures and promising biological activities. However, the potential drug interaction, undesired physiochemical properties and toxicity have limited their potential use and development. In the last decade, pharmaceutical research on the structural modifications, structure-activity relationships (SARs) and mechanisms of action of BPAPs has been greatly developed to overcome the challenges. A comprehensive review of these scientific literature is extremely needed to give an overview of the rapidly emerging area and facilitate research related to BPAPs. This review, containing over 226 references, covers the progress made in the chemical synthesis-based structure modifications, SARs and the mechanism of action of BPAPs in vivo and vitro. The most relevant articles will focus on the discovery of lead compounds via synthetic modifications and the important BPAPs for which the direct targets have been deciphered. From this review, several key points of the SARs and mode of actions of this novel class of compounds have been summarized. The perspective and future direction of the research on BPAPs are concluded. This review would be helpful to get a better grasp of medicinal research of BPAPs and become a compelling guide for chemists dedicated to the synthesis of these compounds.
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6
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Usuwanthim K, Wisitpongpun P, Luetragoon T. Molecular Identification of Phytochemical for Anticancer Treatment. Anticancer Agents Med Chem 2020; 20:651-666. [DOI: 10.2174/1871520620666200213110016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 12/15/2022]
Abstract
Cancer commands the second highest global mortality rate and causes severe public health problems.
Recent advances have been made in cancer therapy but the incidence of the disease remains high. Research on
more efficient treatment methods with reduced side effects is necessary. Historically, edible plants have been
used as traditional medicines for various diseases. These demonstrate the potential of natural products as sources
of bioactive compounds for anticancer treatment. Anticancer properties of phytochemicals are attributed to
bioactive compounds in plant extracts that suppress cancer cell proliferation and growth by inducing both cell
cycle arrest and apoptosis. This review presents a summary of the molecular identification of phytochemicals
with anticancer properties and details their action mechanisms and molecular targets. Moreover, the effects of
the natural product on both immunomodulatory and anticancer properties are provided.
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Affiliation(s)
- Kanchana Usuwanthim
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Prapakorn Wisitpongpun
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Thitiya Luetragoon
- Cellular and Molecular Immunology Research Unit, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
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7
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Sui H, Tan H, Fu J, Song Q, Jia R, Han L, Lv Y, Zhang H, Zheng D, Dong L, Wang S, Li Q, Xu H. The active fraction of Garcinia yunnanensis suppresses the progression of colorectal carcinoma by interfering with tumorassociated macrophage-associated M2 macrophage polarization in vivo and in vitro. FASEB J 2020; 34:7387-7403. [PMID: 32283574 DOI: 10.1096/fj.201903011r] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/27/2020] [Accepted: 03/15/2020] [Indexed: 12/12/2022]
Abstract
Colorectal cancer (CRC) is the third most common solid tumor worldwide and has shown resistance to several immunotherapies, particularly immune checkpoint blockade therapy, which is effective in many other types of cancer. Our previous studies indicated that the active fraction of Garcinia yunnanensis (YTE-17), had potent anticancer activities by regulating multiple signaling pathways. However, knowledge regarding the mechanism and effect of YTE-17 in the prevention of CRC is limited. This study tested the effects of YTE-17 on colon cancer development in vivo by using two murine models: the carcigenic azoxymethane/dextran sulfate sodium (AOM/DSS)-induced CRC model and a genetically induced model using ApcMin/+ mice. Here, the tumor load, tumor number, histology, and even some oncogenes were used to evaluate the effect of YTE-17. The intragastric administration of YTE-17 for 12 weeks significantly decreased CRC incidence, tumor number and size, immunity, and some tumor-associated macrophage (TAM) markers, including CD206, Arg-1, IL-10, and TGF-β. Importantly, the macrophages depletion by clodronate (CEL) also played a role in reducing the tumor burden and inhibiting tumor development, which were not affected by YTE-17 in the ApcMin/+ mice. Moreover, the YTE-17 treatment attenuated CRC cell growth in a co-culture system in the presence of macrophages. Consistently, YTE-17 effectively reduced the tumor burden and macrophage infiltration and enhanced immunity in the AOM/DSS and ApcMin/+ colon tumor models. Altogether, we demonstrate that macrophages in the microenvironment may contribute to the development and progression of CRC cells and propose YTE-17 as a new potential drug option for the treatment of CRC.
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Affiliation(s)
- Hua Sui
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongsheng Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jie Fu
- Department of Traditional Chinese Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Song
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ru Jia
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Han
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yue Lv
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liping Dong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Songpo Wang
- Department of Traditional Chinese Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Li
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongxi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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8
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Wang L, Sun L, Wang X, Wu R, Zhou H, Zheng C, Xu H. Me 2AlSEt-Promoted Domino Dieckmann Cyclization Enables the Total Synthesis of Polycyclic Polyprenylated Acylphloroglucinols. Org Lett 2019; 21:8075-8079. [PMID: 31550167 DOI: 10.1021/acs.orglett.9b03078] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A bioinspired, Me2AlSEt-promoted domino Dieckmann cyclization via an 8-membered ring intermediate to construct bicyclo[3.3.1]nonanes was developed, and the divergent syntheses of nine complex polycyclic polyprenylated acylphloroglucinols were achieved. This novel domino cyclization tolerates a series of congested substrates, providing a very efficient way to construct diverse polycyclic structures. The selectivity and the advantages of the domino cyclization were studied. Moreover, the structure-activity relationship study leads to the identification of three simplified potent antitumor agents.
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Affiliation(s)
- Liping Wang
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Lian Sun
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Xueying Wang
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Key Laboratory of Synthetic Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Rong Wu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Changwu Zheng
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Key Laboratory of Synthetic Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Hongxi Xu
- School of Pharmacy , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China.,Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
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9
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Yin B, Fang DM, Zhou XL, Gao F. Natural products as important tyrosine kinase inhibitors. Eur J Med Chem 2019; 182:111664. [PMID: 31494475 DOI: 10.1016/j.ejmech.2019.111664] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/13/2019] [Accepted: 08/29/2019] [Indexed: 12/27/2022]
Abstract
As an important source of drugs, natural products play an important role in the discovery and development of new drugs. More than 60% of anti-tumor drugs are closely related to natural products. At the same time, as the main cause of tumors, the abnormal activity of tyrosine kinase has become an important target for clinical treatment. Although, small molecule targeted drugs dominate the cancer treatment. Natural active products are driving the development of new tyrosine kinase inhibitors with their unique mode of action and molecular structure diversity. Obtaining new chemical entities with tyrosine kinase inhibitory activity from natural active products will bring new breakthroughs in the research of anticancer drugs. In this paper, different tyrosine kinases are mainly classified as targets, and natural products and derivatives which have been found to inhibit tyrosine kinase activity have been described. It is hoped that by analyzing the different aspects of the source, structural characteristics, mechanism of action and biological activity of these natural products, we will find new members that can be developed into drugs and promote the development of anti-tumor drugs.
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Affiliation(s)
- Bo Yin
- Laboratory of Chemistry and Biodiversity, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Dong-Mei Fang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
| | - Xian-Li Zhou
- Laboratory of Chemistry and Biodiversity, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China
| | - Feng Gao
- Laboratory of Chemistry and Biodiversity, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, PR China.
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10
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Liu YY, Ao Z, Xu QQ, Zhu DR, Chen C, Wang XB, Luo JG, Kong LY. Hyperpatulols A–I, spirocyclic acylphloroglucinol derivatives with anti-migration activities from the flowers of Hypericum patulum. Bioorg Chem 2019; 87:409-416. [DOI: 10.1016/j.bioorg.2019.03.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022]
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11
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Lin X, Tian D, Fu Y, Li Y, Huang L, Gu W, Song J, Li Y, Ben-David Y, Wen M, Yuan C, Hao X. Synthesis of novel guttiferone E and xanthochymol derivatives with cytotoxicities by inducing cell apoptosis and arresting the cell cycle phase. Eur J Med Chem 2019; 162:765-780. [DOI: 10.1016/j.ejmech.2018.11.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022]
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12
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Yang XW, Grossman RB, Xu G. Research Progress of Polycyclic Polyprenylated Acylphloroglucinols. Chem Rev 2018; 118:3508-3558. [PMID: 29461053 DOI: 10.1021/acs.chemrev.7b00551] [Citation(s) in RCA: 249] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polycyclic polyprenylated acylphloroglucinols (PPAPs) are a class of hybrid natural products sharing the mevalonate/methylerythritol phosphate and polyketide biosynthetic pathways and showing considerable structure and bioactivity diversity. This review discusses the progress of research into the chemistry and biological activity of 421 natural PPAPs in the past 11 years as well as in-depth studies of biological activities and total synthesis of some PPAPs isolated before 2006. We created an online database of all PPAPs known to date at http://www.chem.uky.edu/research/grossman/PPAPs . Two subclasses of biosynthetically related metabolites, spirocyclic PPAPs with octahydrospiro[cyclohexan-1,5'-indene]-2,4,6-trione core and complicated PPAPs produced by intramolecular [4 + 2] cycloadditions of MPAPs, are brought into the PPAP family. Some PPAPs' relative or absolute configurations are reassigned or critically discussed, and the confusing trivial names in PPAPs investigations are clarified. Pharmacologic studies have revealed a new molecular mechanism whereby hyperforin and its derivatives regulate neurotransmitter levels by activating TRPC6 as well as the antitumor mechanism of garcinol and its analogues. The antineoplastic potential of some type B PPAPs such as oblongifolin C and guttiferone K has increased significantly. As a result of the recent appearances of innovative synthetic methods and strategies, the total syntheses of 22 natural PPAPs including hyperforin, garcinol, and plukenetione A have been accomplished.
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Affiliation(s)
- Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
| | - Robert B Grossman
- Department of Chemistry , University of Kentucky , Lexington , Kentucky 40506-0055 , United States
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming 650201 , People's Republic of China
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13
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Parikh PK, Ghate MD. Recent advances in the discovery of small molecule c-Met Kinase inhibitors. Eur J Med Chem 2018; 143:1103-1138. [DOI: 10.1016/j.ejmech.2017.08.044] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/03/2017] [Accepted: 08/21/2017] [Indexed: 12/17/2022]
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