1
|
Xu ZH, Grossman RB, Qiu YF, Luo Y, Lan T, Yang XW. Polycyclic Polyprenylated Acylphloroglucinols Bearing a Lavandulyl-Derived Substituent from Garcinia xanthochymus Fruits. JOURNAL OF NATURAL PRODUCTS 2022; 85:2845-2855. [PMID: 36461923 DOI: 10.1021/acs.jnatprod.2c00888] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Many type B polycyclic polyprenylated acylphloroglucinols (PPAPs) bear a lavandulyl-derived substituent, and the configurational assignment of this side chain can be difficult and sometimes leads to erroneous conclusions. In this study, 21 PPAPs, including the new xanthochymusones A-I (1-9), have been isolated from the fruits of Garcinia xanthochymus and structurally characterized. The relative configuration of the C-30 stereocenter was assigned by a combination of chemical transformations, 1H-1H coupling constants, conformational analysis, and NOE experiments. The configurational assignment of compound 7 indicates that the relative configuration at C-30 of PPAPs is not always the same. The absolute configurations of the new compounds were assigned by ECD and X-ray diffraction data, as well as by biosynthetic considerations. Analysis of NMR data enabled the configurational revision of garcicowins C and D. All the isolated PPAPs were tested for antiproliferative activity against three human hepatocellular carcinoma cell lines, including Huh-7, Hep 3B, and HepG2. Compounds 5 and 6, 7-epi-isogarcinol (16), and coccinone C (17) exhibited moderate antiproliferative activity. Compounds 6 and 16 induced apoptosis and inhibited cell migration in Huh-7 cells, probably through downregulating the STAT3 signaling pathway. This study provides effective methods for configurational assignments of type B PPAPs.
Collapse
Affiliation(s)
- Zhi-Hong Xu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, People's Republic of China
| | - Robert B Grossman
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, United States
| | - Yu-Feng Qiu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Yang Luo
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Tian Lan
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, People's Republic of China
| | - Xing-Wei Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| |
Collapse
|
2
|
Wang Y, Huang Q, Zhang L, Zheng C, Xu H. Biphenyls in Clusiaceae: Isolation, structure diversity, synthesis and bioactivity. Front Chem 2022; 10:987009. [PMID: 36531325 PMCID: PMC9751493 DOI: 10.3389/fchem.2022.987009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
Clusiaceae plants contain a wide range of biologically active metabolites that have gotten a lot of interest in recent decades. The chemical compositions of these plants have been demonstrated to have positive effects on a variety of ailments. The species has been studied for over 70 years, and many bioactive compounds with antioxidant, anti-proliferative, and anti-inflammatory properties have been identified, including xanthones, polycyclic polyprenylated acylphloroglucinols (PPAPs), benzophenones, and biphenyls. Prenylated side chains have been discovered in many of these bioactive substances. To date, there have been numerous studies on PPAPs and xanthones, while no comprehensive review article on biphenyls from Clusiaceae has been published. The unique chemical architectures and growing biological importance of biphenyl compounds have triggered a flurry of research and interest in their isolation, biological evaluation, and mechanistic studies. In particular, the FDA-approved drugs such as sonidegib, tazemetostat, daclatasvir, sacubitril and trifarotene are closely related to their biphenyl-containing moiety. In this review, we summarize the progress and development in the chemistry and biological activity of biphenyls in Clusiaceae, providing an in-depth discussion of their structural diversity and medicinal potential. We also present a preliminary discussion of the biological effects with or without prenyl groups on the biphenyls.
Collapse
Affiliation(s)
- Youyi Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qing Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
| | - Hongxi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
| |
Collapse
|
3
|
Teng H, Li Q, Ma Z, Li X, Xie W, Chen Y, Yang G. Polyprenylated Acylphloroglucinols With Different Carbon Skeletons From the Fruits of Garcinia multiflora. Front Chem 2021; 9:756452. [PMID: 34765586 PMCID: PMC8576638 DOI: 10.3389/fchem.2021.756452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/21/2021] [Indexed: 11/13/2022] Open
Abstract
Eleven new polycyclic polyprenylated acylphloroglucinols (PPAPs, 1-11) and three new monocyclic polyprenylated acylphloroglucinols (MPAPs, 12-14), together with ten known analogues were isolated from the fruits of Garcinia multiflora. These PPAPs belong to three types including the bicyclic polyprenylated acylphloroglucinols (BPAPs), the caged PPAPs, and the complicated PPAPs. Their structures and absolute configurations were determined through HRESIMS, NMR spectroscopy data, electronic circular dichroism (ECD) calculations, and gauge-independent atomic orbital (GIAO) NMR calculations with DP4+ analyses. Moreover, compounds 2 and 7 exhibited moderate cytotoxicity against three human cancer lines (MCF-7, T98, and HepG2) with IC50 values ranging from 9.81 ± 1.56 to 17.00 ± 2.75 μM.
Collapse
Affiliation(s)
- Haida Teng
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Qingqing Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Ziyu Ma
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xueni Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Wenli Xie
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yu Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, China
| | - Guangzhong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| |
Collapse
|
4
|
Discovery of Novel Polycyclic Polyprenylated Acylphloroglucinols from the Fruits of Garcinia xanthochymus as Antitumor Agents by Suppressing the STAT3 Signaling. Int J Mol Sci 2021; 22:ijms221910365. [PMID: 34638708 PMCID: PMC8508737 DOI: 10.3390/ijms221910365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022] Open
Abstract
Pharmacologic studies have revealed that polycyclic polyprenylated acylphloroglucinols (PPAPs) collectively exhibit a broad range of biological activities, including antineoplastic potential. Here, six new PPAPs, named garcixanthochymones F–K (3, 5, 7, 8, 11, and 15), together with nine known analogues were isolated from the fruits of Garcinia xanthochymus. Their structures were elucidated based on the spectroscopic data, including UV, HRESIMS, and NMR, and quantum chemical calculations. All the isolated PPAPs were tested for anti-proliferative activity against four human tumor cell lines, including SGC7901, A549, HepG2, and MCF-7. Most of the PPAPs possessed high anti-proliferative activity with IC50 values in the range of 0.89 to 36.98 μM, and significant apoptosis was observed in MCF-7 cells exposed to compounds 2 and 5. Besides, docking results showed that compounds 2 and 5 could strongly combine with the Src homology 2 (SH2) domain of STAT3 via hydrogen bond and hydrophobic interaction, which is one of the key oncogenes and crucial therapeutic targets. Furthermore, compounds 2 and 5 efficiently downregulated the expression of p-STAT3Tyr705 and pivotal effector proteins involved in oncogenic signaling pathways of MCF-7 cells.
Collapse
|
5
|
Wang X, Phang Y, Feng J, Liu S, Zhang H, Fu W, Zhou H, Xu G, Xu H, Zheng C. Stereodivergent Strategy in Structural Determination: Asymmetric Total Synthesis of Garcinol, Cambogin, and Related Analogues. Org Lett 2021; 23:4203-4208. [PMID: 34029109 DOI: 10.1021/acs.orglett.1c01139] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The asymmetric total synthesis of five biologically significant polycyclic polyprenylated acylphloroglucinols (PPAPs), including garcinol and cambogin, was achieved through a highly diastereoselective and stereodivergent strategy. Along the way, an efficient cascade Dieckmann cyclization was employed to construct the bicyclo[3.3.1]nonane core in one step. The synthesis provided a general approach toward the chiral endo-type B PPAPs and their C-30 diastereomers in a single sequence, which resolved the challenges of the absolute configuration determination/structural revision of PPAPs bearing exocyclic stereocenters.
Collapse
Affiliation(s)
- Xueying Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yeelin Phang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiling Feng
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Song Liu
- 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
| | - Wenwei Fu
- 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
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, 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, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
6
|
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.
Collapse
|
7
|
Sukandar ER, Kaennakam S, Aree T, Nöst X, Rassamee K, Bauer R, Siripong P, Ersam T, Tip-Pyang S. Picrorhizones A-H, Polyprenylated Benzoylphloroglucinols from the Stem Bark of Garcinia picrorhiza. JOURNAL OF NATURAL PRODUCTS 2020; 83:2102-2111. [PMID: 32627543 DOI: 10.1021/acs.jnatprod.9b01106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Eight new polyprenylated benzoylphloroglucinol derivatives (1-8) and four known analogues (9-12) were isolated from the stem bark of Garcinia picrorhiza. Their structures were determined by spectroscopic data analysis (1D and 2D NMR and HRESIMS), and the absolute configurations were established by single-crystal X-ray diffraction combined with experimental and calculated ECD data. The new metabolites represent rare examples of benzoylphloroglucinols bearing a cyclobutyl-containing side chain. The isolated compounds were evaluated for their cytotoxic properties against five types of human cancer cells (KB, HeLa S3, MCF-7, Hep G2, and HT-29 cells) and their inhibitory activities against COX-1 and COX-2 enzymes. The cytotoxicity results showed that compound 6 was active against KB, HeLa S3, MCF-7, and Hep G2 cancer cells, with IC50 values ranging from 5.9 to 9.4 μM. Among the compounds tested for cyclooxygenase inhibition, compound 8 possessed the highest inhibitory effect toward COX-1 (35.2 ± 9.6% inhibition at 20 μM).
Collapse
Affiliation(s)
- Edwin R Sukandar
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sutin Kaennakam
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Agro-Industrial, Food, and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok 10800, Thailand
| | - Thammarat Aree
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Xuehong Nöst
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/1, 8010 Graz, Austria
| | - Kitiya Rassamee
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok 10400, Thailand
| | - Rudolf Bauer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/1, 8010 Graz, Austria
| | - Pongpun Siripong
- Natural Products Research Section, Research Division, National Cancer Institute, Bangkok 10400, Thailand
| | - Taslim Ersam
- Natural Products and Synthesis Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo, Surabaya 60111, Indonesia
| | - Santi Tip-Pyang
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| |
Collapse
|
8
|
Teng H, Ma Z, Teng H, Du Y, Chen X, Chen Y, Yang G. Two novel cyclohexanone-monocyclic polycyclic polyprenylated acylphloroglucinols from Garcinia multiflora fruits. Nat Prod Res 2020; 36:508-514. [DOI: 10.1080/14786419.2020.1788559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Haida Teng
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Ziyu Ma
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Hongli Teng
- Guangxi International Zhuang Medicine Hospital, Nanning, P. R. China
| | - Yan Du
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Xi Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Yu Chen
- College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| | - Guangzhong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, P.R. China
| |
Collapse
|
9
|
Yang J, Fu W, Xiang Q, Tang Y, Wu R, Zheng C, Lu Y, Zhou H, Xu H. Cytotoxic xanthone derivatives from the twigs of Garcinia oligantha. PHYTOCHEMISTRY 2020; 174:112329. [PMID: 32203742 DOI: 10.1016/j.phytochem.2020.112329] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/25/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
Ten undescribed xanthone derivatives, garoliganthins A-I and oliganthaxanthone C, along with eight known compounds, were isolated from the twigs of Garcinia oligantha Merr. Their structures and absolute configurations were determined by extensive spectroscopic methods, single-crystal X-ray diffraction analysis, electronic circular dichroism analysis, and chiral HPLC/HPLC-CD analysis combined with density functional theory calculations. Garoliganthin A is an unprecedented tetrahydro-xanthone derivative possessing a bicycle [3.2.2] nonane skeleton, and garoliganthins B-E are the first examples of a new class of rearranged xanthone derivatives with six-membered lactone core scaffold. The cytotoxic effects of the isolates on four human cancer cell lines (HeLa, PC-3, A549, and K562) were measured using an MTT assay. Seven compounds showed good inhibitory activities against four cancer cell lines with IC50 values ranging from 2.1 to 16.8 μM.
Collapse
Affiliation(s)
- Jinling Yang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Wenwei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Qian Xiang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Yuexun Tang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Rong Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Yue Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Hongxi Xu
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Zhang BJ, Fu WW, Wu R, Yang JL, Yao CY, Yan BX, Tan HS, Zheng CW, Song ZJ, Xu HX. Bioactive scalemic caged xanthones from the leaves of Garcinia bracteata. Bioorg Chem 2019; 82:274-283. [DOI: 10.1016/j.bioorg.2018.10.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/18/2018] [Accepted: 10/22/2018] [Indexed: 01/22/2023]
|
12
|
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.
Collapse
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
| |
Collapse
|
13
|
Tang YX, Fu WW, Wu R, Tan HS, Shen ZW, Xu HX. Bioassay-Guided Isolation of Prenylated Xanthone Derivatives from the Leaves of Garcinia oligantha. JOURNAL OF NATURAL PRODUCTS 2016; 79:1752-1761. [PMID: 27329938 DOI: 10.1021/acs.jnatprod.6b00137] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Four new dihydroxanthone derivatives (1-4), four new tetrahydroxanthone derivatives (5-8), two new xanthone derivatives (9 and 10), and two known caged tetrahydroxanthones were isolated from extracts of the leaves of Garcinia oligantha by bioassay-guided fractionation. These structures of the new compounds were elucidated by NMR and MS spectroscopic data analysis, and the absolute configurations of compounds 1 and 5-7 were determined by electronic circular dichroism and/or single-crystal X-ray diffraction analysis. Compounds 6-9 were shown to be unusual xanthone derivatives with an isopropyl group, which was confirmed by the X-ray crystallographic structure of compound 8. The inhibitory activities of these isolates against four human tumor cell lines (A549, HepG2, HT-29, and PC-3) were assayed, and compounds 1, 2, 5, 11, and 12 showed inhibitory effects on tumor cell growth, with IC50 values ranging from 2.1 to 8.6 μM.
Collapse
Affiliation(s)
- Yue-Xun Tang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery , Shanghai 201203, People's Republic of China
| | - Wen-Wei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery , Shanghai 201203, People's Republic of China
| | - Rong Wu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery , Shanghai 201203, People's Republic of China
| | - Hong-Sheng Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery , Shanghai 201203, People's Republic of China
| | - Zhen-Wu Shen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
| | - Hong-Xi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , Shanghai 201203, People's Republic of China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery , Shanghai 201203, People's Republic of China
| |
Collapse
|