1
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Kempthorne CJ, St Pierre M, Le A, Livingstone S, McNulty J, Cadotte MW, Liscombe DK. Mass spectrometry-based metabolomics for the elucidation of alkaloid biosynthesis and function in invasive Vincetoxicum rossicum populations. PHYTOCHEMISTRY 2024; 221:114051. [PMID: 38452878 DOI: 10.1016/j.phytochem.2024.114051] [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: 10/04/2023] [Revised: 02/23/2024] [Accepted: 03/02/2024] [Indexed: 03/09/2024]
Abstract
The genus Vincetoxicum includes a couple of highly invasive vines in North America that threaten biodiversity and challenge land management strategies. Vincetoxicum species are known to produce bioactive phenanthroindolizidine alkaloids that might play a role in the invasiveness of these plants via chemical interactions with other organisms. Untargeted, high-resolution mass spectrometry-based metabolomics approaches were used to explore specialized metabolism in Vincetoxicum plants collected from invaded sites in Ontario, Canada. All metabolites corresponding to alkaloids in lab and field samples of V. rossicum and V. nigrum were identified, which collectively contained 25 different alkaloidal features. The biosynthesis of these alkaloids was investigated by the incorporation of the stable isotope-labelled phenylalanine precursor providing a basis for an updated biosynthetic pathway accounting for the rapid generation of chemical diversity in invasive Vincetoxicum. Aqueous extracts of aerial Vincetoxicum rossicum foliage had phytotoxic activity against seedlings of several species, resulting in identification of tylophorine as a phytotoxin; tylophorine and 14 other alkaloids from Vincetoxicum accumulated in soils associated with full-sun and a high-density of V. rossicum. Using desorption-electrospray ionization mass spectrometry, 15 alkaloids were found to accumulate at wounded sites of V. rossicum leaves, a chemical cocktail that would be encountered by feeding herbivores. Understanding the specialized metabolism of V. rossicum provides insight into the roles and influences of phenanthroindolizidine alkaloids in ecological systems and enables potential, natural product-based approaches for the control of invasive Vincetoxicum and other weedy species.
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Affiliation(s)
- Christine J Kempthorne
- Vineland Research and Innovation Centre, 4890 Victoria Ave North, Box 4000, Vineland Station, Ontario, L0R 2E0, Canada; Centre for Biotechnology, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario, L2S 3A1, Canada
| | - Max St Pierre
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St W, Hamilton, Ontario, L8S 4L8, Canada
| | - Andrew Le
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - Stuart Livingstone
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - James McNulty
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St W, Hamilton, Ontario, L8S 4L8, Canada
| | - Marc W Cadotte
- Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, M1C 1A4, Canada
| | - David K Liscombe
- Vineland Research and Innovation Centre, 4890 Victoria Ave North, Box 4000, Vineland Station, Ontario, L0R 2E0, Canada; Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St Catharines, Ontario, L2S 3A1, Canada.
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2
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Sui J, He Y, Wang D, Wang T, Ren K, Liang Y, Zhang Z. Synthesis of cis-(8b,14a)-hexahydro-14H-dibenzo[f,h]oxazolo[3,2-b]isoquinolin-14-ones via photo cascade reaction. Mol Divers 2024:10.1007/s11030-024-10857-1. [PMID: 38643417 DOI: 10.1007/s11030-024-10857-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/22/2024] [Indexed: 04/22/2024]
Abstract
A concise method for the synthesis of cis-(8b,14a)-hexahydro-14H-dibenzo[f,h]oxazolo[3,2-b]isoquinolin-14-ones 2 via photo-induced 3-([1,1'-biphenyl]-2-yl)-1-(2-hydroxyethyl)pyridin-2(1H)-ones 1 was developed. Irradiation of 1 in the solution of toluene with a 313 nm UV light in the presence of HCl gave cis-(8b,14a)-9a-α-hexahydro-14H-dibenzo[f,h]oxazolo[3,2-b]isoquinoli n-14-ones and cis-(8b,14a)-9a-β-hexahydro-14H-dibenzo[f,h]oxazolo[3,2-b]isoquinolin-14-ones 2 (2-α and 2-β) in good yields. The protocol simultaneously constructs dearomatized phenanthrene ring and oxindolizidinones ring by photo cascade reaction to achieve high bonding efficiency and high atomic efficiency. Additionally, the antitumor activities of 2 was evaluated and compounds 2b-α, 2b-β, 2j-β and 2 k-α showed similar or better activity compared to the cisplatin against tumor cell lines of Leukemia HL-60, lung cancer A594, liver cancer SMMC-7721 and breast cancer MDA-MB-231.
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Affiliation(s)
- Jingzhi Sui
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Yun He
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Ding Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Tao Wang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Kexin Ren
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Yong Liang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA, 91010, USA
| | - Zunting Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
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3
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Gammatantrawet N, Nguyễn CT, Susawaengsup C, Ramli ANM, Tongkoom K, Chatsungnoen T, Dangtungee R, Bhuyar P. Phytochemistry of Medicinal Herbs Belongs to Asclepiadaceae Family for Therapeutic Applications: A Critical Review. Mol Biotechnol 2024:10.1007/s12033-024-01122-9. [PMID: 38507018 DOI: 10.1007/s12033-024-01122-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/13/2024] [Indexed: 03/22/2024]
Abstract
The world of pharmaceutical research has been increasingly turning its gaze toward the treasure trove of natural products in search of novel drugs and therapeutic agents. Amidst the vast array of medicinal plants that dot our planet, the Asclepiadaceae family unexplored species have piqued the interest of researchers. Both medicinal plants are indigenous to specific regions and have been integral to traditional medicine systems for centuries. This systematic review aims to provide a comprehensive summary of the current knowledge regarding the phytochemical profile of these plants and their potential implications in the pharmaceutical industry. These plants are rich in phytochemical constituents such as alkaloids, flavonoids, terpenoids, phenolic compounds, glycosides, and saponins. These constituents have been found to exhibit a range of pharmacological activities. They have antimicrobial properties, providing a defense against various microorganisms. They also show anti-inflammatory properties, helping to reduce inflammation in the body. In addition, these plants have antioxidant properties, which help protect cells from damage by harmful free radicals. They have shown anticancer activity, offering potential for cancer treatment. Their neuroprotective properties could be beneficial in treating neurological disorders. The analgesic properties of these plants could be harnessed for pain relief. Furthermore, they have antidiabetic properties, offering potential for diabetes management. The hope is that this review will stimulate further research into these fascinating plants and contribute to discovering new drugs from natural herbs.
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Affiliation(s)
| | - Chuyên Thuận Nguyễn
- Organic Agriculture Management, International College, Maejo University, Chiang Mai, 50290, Thailand
| | - Chanthana Susawaengsup
- Maejo University Phrae Campus, Mae Sai, Rong Kwang District, Phrae, 54140, Thailand
- International Industry and Agriculture Innovation Research Center (IIAR), International College, Maejo University, Chiang Mai, 50290, Thailand
| | - Aizi Nor Mazila Ramli
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah (UMPSA), Lebuhraya Tun Abdul Razak, Gambang, 26300, Pahang, Malaysia
| | - Krittiya Tongkoom
- Organic Agriculture Management, International College, Maejo University, Chiang Mai, 50290, Thailand
- International Industry and Agriculture Innovation Research Center (IIAR), International College, Maejo University, Chiang Mai, 50290, Thailand
| | - Tawan Chatsungnoen
- Maejo University Phrae Campus, Mae Sai, Rong Kwang District, Phrae, 54140, Thailand
- International Industry and Agriculture Innovation Research Center (IIAR), International College, Maejo University, Chiang Mai, 50290, Thailand
| | - Rapeephun Dangtungee
- Organic Agriculture Management, International College, Maejo University, Chiang Mai, 50290, Thailand
- International Industry and Agriculture Innovation Research Center (IIAR), International College, Maejo University, Chiang Mai, 50290, Thailand
| | - Prakash Bhuyar
- Organic Agriculture Management, International College, Maejo University, Chiang Mai, 50290, Thailand.
- International Industry and Agriculture Innovation Research Center (IIAR), International College, Maejo University, Chiang Mai, 50290, Thailand.
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4
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Xu X, Shao J, Wang SR. Tuning the Cyclopropane Ring-Opening Reaction over Electronic Bias by Fusion to a Pre-Aromatic Ring: TfOH-Promoted Aromatization of Dibenzonorcaradienes to Dibenzo[ f, h]isocoumarins. J Org Chem 2022; 87:3794-3798. [PMID: 35037754 DOI: 10.1021/acs.joc.1c02884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fusion of the cyclopropane ring bearing two vicinal acceptors to the pre-aromatic dihydrophenanthrene ring, which is constructed by the Pd-catalyzed cross-coupling between the vicinal aromatic rings, is found to effectively direct the cleavage of the electronically unfavored cyclopropane bond between the vicinal acceptors. Consequently, a modular method for the rapid synthesis of dibenzo[f,h]isocoumarins from methyl ketones, aryl aldehydes, and α-keto esters via a reaction cascade of aldol condensation, Kukhtin-Ramirez cyclopropanation, Pd-catalyzed direct arylation, and acid-promoted aromatization has been realized.
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Affiliation(s)
- Xudong Xu
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Jiru Shao
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Sunewang R Wang
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 North Zhongshan Lu, Shanghai 200062, China
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5
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Jia XH, Zhao HX, Du CL, Tang WZ, Wang XJ. Possible pharmaceutical applications can be developed from naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2020; 20:845-868. [PMID: 32994757 PMCID: PMC7517060 DOI: 10.1007/s11101-020-09723-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Naturally occurring phenanthroindolizidine and phenanthroquinolizidine alkaloids (PIAs and PQAs) are two small groups of herbal metabolites sharing a similar pentacyclic structure with a highly oxygenated phenanthrene moiety fused with a saturated or an unsaturated N-heterocycle (indolizidine/quinolizidine moieties). Natural PIAs and PQAs only could be obtained from finite plant families (such as Asclepiadaceae, Lauraceae and Urticaceae families, etc.). Up to date, more than one hundred natural PIAs, while only nine natural PQAs had been described. PIA and PQA analogues have been applied to the development of potent anticancer agents all along because of their excellent cytotoxic activity. However, in the last two decades, other great biological properties, such as anti-inflammatory and antiviral activities were revealed successively by different pharmacological assays. Especially because of their potent antiviral activity against coronavirus (TGEV, SARS CoV and MHV) and tobacco mosaic virus, PIA and PQA analogues have attracted much pharmaceutical attention again, some of them have been used to present interesting targets for total or semi synthesis, and structure-activity relationship (SAR) study for the development of antiviral agents. In this review, natural PIA and PQA analogues obtained in the last two decades with their herbal origins, key spectroscopic characteristics for structural identification, biological activity with possible SARs and application prospects were systematically summarized. We hope this paper can stimulate further investigations on PIA and PQA analogues as an important source for potential drug discovery.
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Affiliation(s)
- Xian-hui Jia
- Institute of Materia Medica, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250062 People’s Republic of China
| | - Huan-xin Zhao
- Institute of Materia Medica, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250062 People’s Republic of China
| | - Cheng-lin Du
- Institute of Materia Medica, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250062 People’s Republic of China
| | - Wen-zhao Tang
- Institute of Materia Medica, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250062 People’s Republic of China
| | - Xiao-jing Wang
- Institute of Materia Medica, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250062 People’s Republic of China
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6
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Funt LD, Krivolapova YV, Khoroshilova OV, Novikov MS, Khlebnikov AF. 2H-Azirine-2-carbonyl Azides: Preparation and Use as N-Heterocyclic Building Blocks. J Org Chem 2020; 85:4182-4194. [PMID: 32098472 DOI: 10.1021/acs.joc.9b03367] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Liya D. Funt
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Yulia V. Krivolapova
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Olesya V. Khoroshilova
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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7
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Renner J, Thakur A, Rutz PM, Cowley JM, Evangelista JL, Kumar P, Prater MB, Stolley RM, Louie J. Total Synthesis of Indolizidine Alkaloids via Nickel-Catalyzed (4 + 2) Cyclization. Org Lett 2020; 22:924-928. [DOI: 10.1021/acs.orglett.9b04479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jonas Renner
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Ashish Thakur
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Philipp M. Rutz
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Jacob M. Cowley
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Judah L. Evangelista
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Puneet Kumar
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Matthew B. Prater
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Ryan M. Stolley
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8450, United States
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8
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Chen YH, Tang RS, Chen LY, Chuang TH. One-Pot Oxidative Coupling/Decyanation of 6,7-Diphenylindolizine-5-carbonitriles and 2,3-Diphenylquinolizine-4-carbonitriles. J Org Chem 2019; 84:4501-4506. [PMID: 30864446 DOI: 10.1021/acs.joc.9b00041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The one-pot oxidative coupling/decyanation reactions of 6,7-diphenylindolizine-5-carbonitriles and 2,3-diphenylquinolizine-4-carbonitriles were investigated using aryl-aryl oxidative coupling reagents. The phenanthroindolizidinones and phenanthroquinolizidinones were produced in 52-89% yields under VOF3/trifluoroacetic acid or [bis(trifluoroacetoxy)iodo]benzene/BF3-mediated conditions. This represents a mild and efficient approach to construct these types of pentacyclic skeletons from the corresponding cyano group-activated aza-Diels-Alder cycloadducts. A plausible mechanism of the one-pot oxidative coupling/decyanation reaction was proposed.
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Affiliation(s)
- Yi-Hsuan Chen
- School of Pharmacy , China Medical University , Taichung 40402 , Taiwan
| | - Rong-Shiow Tang
- School of Pharmacy , China Medical University , Taichung 40402 , Taiwan
| | - Li-Yuan Chen
- School of Pharmacy , China Medical University , Taichung 40402 , Taiwan
| | - Ta-Hsien Chuang
- School of Pharmacy , China Medical University , Taichung 40402 , Taiwan
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9
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Santra S, Khasanov AF, Mukherjee A, Rahman M, Kovalev IS, Kopchuk DS, Zyryanov GV, Majee A, Chupakhin ON, Charushin VN. Mono- and Polyazatriphenylene-Based Ligands: An Updated Library of Synthetic Strategies (2001-2018). European J Org Chem 2018. [DOI: 10.1002/ejoc.201800635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sougata Santra
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
| | - Albert F. Khasanov
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
| | - Anindita Mukherjee
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
| | - Matiur Rahman
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
| | - Igor S. Kovalev
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
| | - Dmitry S. Kopchuk
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis; Ural Division of the Russian Academy of Sciences; 22 S. Kovalevskoy Str. 620219 Yekaterinburg Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis; Ural Division of the Russian Academy of Sciences; 22 S. Kovalevskoy Str. 620219 Yekaterinburg Russian Federation
| | - Adinath Majee
- Department of Chemistry; Visva-Bharati (A Central University); 731235 Santiniketan India
| | - Oleg N. Chupakhin
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis; Ural Division of the Russian Academy of Sciences; 22 S. Kovalevskoy Str. 620219 Yekaterinburg Russian Federation
| | - Valery N. Charushin
- Department of Organic and Biomolecular Chemistry; Chemical Engineering Institute; Ural Federal University; 19 Mira Str. 620002 Yekaterinburg, K-2 Russian Federation
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10
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Jao CW, Hung TH, Chang CF, Chuang TH. Chemical Constituents of Phaius mishmensis. Molecules 2016; 21:molecules21111605. [PMID: 27886100 PMCID: PMC6272941 DOI: 10.3390/molecules21111605] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 12/03/2022] Open
Abstract
The partitioned n-hexane, CHCl3, and EtOAc extracts from the crude MeOH extract of Phaius mishmensis showed considerable cytotoxicities against the human breast carcinoma (MCF-7), lung carcinoma (NCI-H460), and central nervous system carcinoma (SF-268) cell lines. Four new compounds, phaindole (1), (7′R,8′R)-phaithrene (2), methyl 3-hydroxy-4,5-dimethoxypropiophenone (3), and methyl hematinate (4), as well as 44 known compounds were isolated from the MeOH extract of Phaius mishmensis. The structures of the compounds were determined using spectroscopic methods.
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Affiliation(s)
- Chen-Wei Jao
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tzu-Heng Hung
- School of Pharmacy, China Medical University, Taichung 40402, Taiwan.
| | - Chi-Fen Chang
- Department of Anatomy, School of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Ta-Hsien Chuang
- School of Pharmacy, China Medical University, Taichung 40402, Taiwan.
- Research Center for Chinese Herbal Medicine, China Medical University, Taichung 40402, Taiwan.
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11
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Liu GQ, Reimann M, Opatz T. Total Synthesis of Phenanthroindolizidine Alkaloids by Combining Iodoaminocyclization with Free Radical Cyclization. J Org Chem 2016; 81:6142-8. [PMID: 27314476 DOI: 10.1021/acs.joc.6b01161] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gong-Qing Liu
- Institute
of Organic Chemistry, Johannes Gutenberg University, Duesbergweg
10−14, 55128 Mainz, Germany
| | - Marcel Reimann
- Institute
of Organic Chemistry, Johannes Gutenberg University, Duesbergweg
10−14, 55128 Mainz, Germany
| | - Till Opatz
- Institute
of Organic Chemistry, Johannes Gutenberg University, Duesbergweg
10−14, 55128 Mainz, Germany
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12
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Šafář P, Marchalín Š, Prónayová N, Vrábel V, Lawson AM, Othman M, Daïch A. Use of chiral-pool approach into epi-thieno analogues of the scarce bioactive phenanthroquinolizidine alkaloids. Tetrahedron 2016; 72:3221-3231. [PMID: 32287429 PMCID: PMC7111795 DOI: 10.1016/j.tet.2016.04.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 04/17/2016] [Accepted: 04/19/2016] [Indexed: 10/30/2022]
Abstract
The stereoselective synthesis of epi-thieno analogues of the phenanthroquinolizidine bioactive alkaloids (-)-Cryptopleurine and (-)-(15R)-Hydroxycryptopleurine was achieved in five steps starting from easily available enantiopure (S)-2-aminoadipic acid used as chiral pool and nitrogen atom source. During these investigations, both π-cationic cyclization of chiral N-thienylmethyl-6-oxopipecolinic acids into pure (S)-keto-lactams and theirs regioselective and diastereoselective reduction, considered as key steps of this sequence, were studied. Of particular interest, the Friedel-Crafts cyclization using (CF3CO)2O/BF3·Et2O show that near the expected keto-lactams, enamides and enamidones containing trifluoromethyl residue were isolated. A mechanism leading to the latter products with high synthetic potential was discussed.
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Affiliation(s)
- Peter Šafář
- Department of Organic Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, SK-81237 Bratislava, Slovak Republic
| | - Štefan Marchalín
- Department of Organic Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, SK-81237 Bratislava, Slovak Republic
| | - Nadežda Prónayová
- Central Laboratories, Faculty of Chemical and Food Technology, Slovak University of Technology, SK-81237 Bratislava, Slovak Republic
| | - Viktor Vrábel
- Department of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, SK-81237 Bratislava, Slovak Republic
| | | | - Mohamed Othman
- Normandie Univ, UNILEHAVRE, CNRS, URCOM, 76600 Le Havre, France
| | - Adam Daïch
- Normandie Univ, UNILEHAVRE, CNRS, URCOM, 76600 Le Havre, France
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13
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Yao T, Zhang H, Zhao Y. Synthesis of 9,10-Phenanthrenes via Palladium-Catalyzed Aryne Annulation by o-Halostyrenes and Formal Synthesis of (±)-Tylophorine. Org Lett 2016; 18:2532-5. [DOI: 10.1021/acs.orglett.6b00558] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tuanli Yao
- College
of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, 6 Xuefu Road, Weiyang District, Xi’an, Shaanxi 710021, China
| | - Haiming Zhang
- Small Molecule
Process Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Yanna Zhao
- College
of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, 6 Xuefu Road, Weiyang District, Xi’an, Shaanxi 710021, China
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14
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Chang CF, Li CF, Tsai CC, Chuang TH. Cyano Group Removal from Cyano-Promoted Aza-Diels-Alder Adducts: Synthesis and Structure-Activity Relationship of Phenanthroindolizidines and Phenanthroquinolizidines. Org Lett 2016; 18:638-41. [PMID: 26836702 DOI: 10.1021/acs.orglett.5b03395] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phenanthroindolizidines and phenanthroquinolizidines were concisely synthesized by the reductive decyanization of cyano-promoted intramolecular aza-Diels-Alder cycloadducts followed by aryl-aryl coupling. Cyano groups were removed from α-aminoacrylonitriles via treatment with sodium borohydride in 2-propanol in almost quantitative yields; a possible mechanism was proposed and examined using D-labeling experiments. A systematic study of the effects of the phenanthrene substitution pattern on the anticancer activity against three human cancer cell lines was discussed.
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Affiliation(s)
- Chi-Fen Chang
- Department of Anatomy, School of Medicine, China Medical University , Taichung 40402, Taiwan
| | - Chien-Fu Li
- School of Pharmacy, China Medical University , Taichung 40402, Taiwan
| | - Chia-Chen Tsai
- School of Pharmacy, China Medical University , Taichung 40402, Taiwan
| | - Ta-Hsien Chuang
- School of Pharmacy, China Medical University , Taichung 40402, Taiwan.,Research Center for Chinese Herbal Medicine, China Medical University , Taichung 40402, Taiwan
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15
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Anton-Torrecillas C, Loza MI, Brea J, Gonzalez-Gomez JC. Concise asymmetric syntheses of novel phenanthroquinolizidines. Org Biomol Chem 2016; 14:2264-71. [PMID: 26790584 DOI: 10.1039/c5ob02624e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The first preparation of enantioenriched phenanthroquinolizidines with a quaternary center at C14a was accomplished in seven steps from readily available starting materials. Key steps were an efficient dynamic kinetic allylation of a diastereomeric mixture of chiral tert-butylsulfinyl ketimines and the construction of a piperidine E ring by rhodium catalyzed hydroformylation. The Stevens rearrangement of the corresponding N-benzyl derivatives took place smoothly, allowing the installation of a benzyl moiety at C9 in a trans relationship with the methyl group. The cytoxicity of the prepared phenanthroquinolizidines was evaluated against different human cancer cell lines.
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Affiliation(s)
- Cintia Anton-Torrecillas
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain.
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16
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Chen CY, Bai LP, Ke ZF, Liu Y, Wang JR, Jiang ZH. G-Quadruplex DNA-binding quaternary alkaloids from Tylophora atrofolliculata. RSC Adv 2016. [DOI: 10.1039/c6ra21056b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Quaternary alkaloids from T. atrofolliculata with human telomeric DNA G-quadruplex binding capacity.
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Affiliation(s)
- Cheng-Yu Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhuo-Feng Ke
- School of Materials Science and Engineering
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Yan Liu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- China
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17
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Qiu YQ, Yang CW, Lee YZ, Yang RB, Lee CH, Hsu HY, Chang CC, Lee SJ. Targeting a ribonucleoprotein complex containing the caprin-1 protein and the c-Myc mRNA suppresses tumor growth in mice: an identification of a novel oncotarget. Oncotarget 2015; 6:2148-63. [PMID: 25669982 PMCID: PMC4385842 DOI: 10.18632/oncotarget.3236] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 12/09/2014] [Indexed: 12/31/2022] Open
Abstract
Tylophorine compounds have been the focus of drug development for decades. Tylophorine derivatives exhibit anti-cancer activities but their cellular targets remain unknown. We used a biotinylated tylophorine derivative to probe for the interacting cellular target(s) of tylophorine. Tylophorine directly binds to caprin-1 and consequently enhances the recruitment of G3BP1, c-Myc mRNA, and cyclin D2 mRNA to form a ribonucleoprotein complex. Subsequently, this tylophorine targeted ribonucleoprotein complex is sequestered to the polysomal fractions and the protein expressions of the associated mRNA-transcripts are repressed. Caprin-1 depleted carcinoma cells become more resistant to tylophorine, associated with decreased formation of the ribonucleoprotein complex targeted by tylophorine. Consequently, tylophorine downregulates c-Myc and cyclins D1/D2, causing hypophosphorylation of Rb and suppression of both processing-body formation and the Warburg effect. Gene expression profiling and gain-of-c-Myc-function experiments also revealed that the downregulated c-Myc contributes to the anti-oncogenic effects of tylophorine compounds. Furthermore, the potent tylophorine derivative dibenzoquinoline-33b elicited a similar effect, as c-Myc protein levels were also decreased in xenograft tumors treated with dibenzoquinoline-33b. Thus, tylophorine compounds exert anti-cancer activity predominantly by targeting and sequestering the caprin-1 protein and c-Myc mRNA associated ribonucleoprotein complex.
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Affiliation(s)
- Ya-Qi Qiu
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan.,Graduate Program of Biotechnology in Medicine, Institute of Molecular & Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Cheng-Wei Yang
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yue-Zhi Lee
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan
| | - Ruey-Bing Yang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chih-Hao Lee
- Department of Genetics and Complex Diseases, Division of Biological Sciences, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Hsing-Yu Hsu
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chien-Chung Chang
- Graduate Program of Biotechnology in Medicine, Institute of Molecular & Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Shiow-Ju Lee
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan
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18
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Anton-Torrecillas C, Bosque I, Gonzalez-Gomez JC, Loza MI, Brea J. Syntheses and Cytotoxicity of (R)- and (S)-7-Methoxycryptopleurine. J Org Chem 2015; 80:1284-90. [DOI: 10.1021/jo502660r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Cintia Anton-Torrecillas
- Departamento
de Química Orgánica, Facultad de Ciencias and Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Irene Bosque
- Departamento
de Química Orgánica, Facultad de Ciencias and Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Jose C. Gonzalez-Gomez
- Departamento
de Química Orgánica, Facultad de Ciencias and Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - María Isabel Loza
- Grupo
de Investigación Biofarma, USEF Screening Platform, Centro
de Investigación en Medicina Molecular y Enfermedades Crónicas
(CIMUS), Universidad de Santiago de Compostela, Avda de Barcelona s/n, Santiago de Compostela, Spain
| | - José Brea
- Grupo
de Investigación Biofarma, USEF Screening Platform, Centro
de Investigación en Medicina Molecular y Enfermedades Crónicas
(CIMUS), Universidad de Santiago de Compostela, Avda de Barcelona s/n, Santiago de Compostela, Spain
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19
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Wang Z, Feng A, Cui M, Liu Y, Wang L, Wang Q. Design, synthesis, anti-tobacco mosaic virus (TMV) activity, and SARs of 7-methoxycryptopleurine derivatives. Chem Biol Drug Des 2014; 84:531-42. [PMID: 24751111 DOI: 10.1111/cbdd.12340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/13/2014] [Accepted: 03/28/2014] [Indexed: 11/26/2022]
Abstract
A series of 7-methoxycryptopleurine derivatives 2-23 were prepared and evaluated for their antiviral activity against tobacco mosaic virus (TMV) for the first time. The bioassay results showed that most of these compounds exhibited excellent in vivo anti-TMV activity, of which 7-methoxycryptopleurine salt derivatives 16, 19, and 23 displayed significantly higher activity than 7-methoxycryptopleurine (1) and commercial ribavirin and ningnanmycin. Salification, the most commonly employed method for modifying physical-chemical properties, did significantly increase antiviral activity, and different salt forms displayed different antiviral effect. This study provides fundamental support for development and optimization of phenanthroquinolizidine alkaloids as potential inhibitors of plant virus.
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Affiliation(s)
- Ziwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Nankai University, Tianjin, 300071, China
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20
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Fanté B, Soro Y, Koné M, Siaka S, Coustard JM. Intramolecular Cyclization of 1-Benzyl-2-(nitromethylene)pyrrolidines in Triflic Acid. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.937501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Wehming K, Schubert M, Schnakenburg G, Waldvogel SR. Oxidative Cyclization Reaction of 2-Aryl-Substituted Cinnamates To Form Phenanthrene Carboxylates by Using MoCl5. Chemistry 2014; 20:12463-9. [DOI: 10.1002/chem.201403442] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Indexed: 12/12/2022]
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22
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Chen F, Su B, Wang Q. Asymmetric synthesis of (S)-tylophorine and (S)-cryptopleurine via one-pot Curtius rearrangement and Friedel–Crafts reaction tandem sequence. Org Chem Front 2014. [DOI: 10.1039/c4qo00084f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A practical total synthesis of phenanthroindo/quinolizidine alkaloids was developed, featuring an enantioselective alkylation and a one-pot Curtius rearrangement/intramolecular cyclization cascade.
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Affiliation(s)
- Fazhong Chen
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071, People's Republic of China
| | - Bo Su
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071, People's Republic of China
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23
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Su B, Zhang H, Deng M, Wang Q. An enantioselective strategy for the total synthesis of (S)-tylophorine via catalytic asymmetric allylation and a one-pot DMAP-promoted isocyanate formation/Lewis acid catalyzed cyclization sequence. Org Biomol Chem 2014; 12:3616-21. [DOI: 10.1039/c4ob00200h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel total synthesis of (S)-tylophorine is reported, featuring asymmetric allylation and cascade isocyanate formation and cyclization.
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Affiliation(s)
- Bo Su
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, People's Republic of China
| | - Hui Zhang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, People's Republic of China
| | - Meng Deng
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, People's Republic of China
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24
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Zhang WK, Xu JK, Tian HY, Wang L, Zhang XQ, Xiao XZ, Li P, Ye WC. Two new vinblastine-type N-oxide alkaloids from Catharanthus roseus. Nat Prod Res 2013; 27:1911-6. [DOI: 10.1080/14786419.2013.790029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Wei-Ku Zhang
- Department of Pharmacology, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Jie-Kun Xu
- School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Hai-Yan Tian
- Institute of Traditional Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Lei Wang
- Institute of Traditional Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xiao-Qi Zhang
- Institute of Traditional Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xu-Zhi Xiao
- Institute of Traditional Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Ping Li
- Department of Pharmacology, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, 510632, People's Republic of China
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25
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Kwon Y, Song J, Lee B, In J, Song H, Chung HJ, Lee SK, Kim S. Design, synthesis, and evaluation of a water-soluble antofine analogue with high antiproliferative and antitumor activity. Bioorg Med Chem 2013; 21:1006-17. [DOI: 10.1016/j.bmc.2012.11.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/12/2012] [Accepted: 11/16/2012] [Indexed: 12/25/2022]
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26
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Wu M, Wang ZW, Liu YX, Song HB, Zhang A, Meng LH, Wang QM. Different salt derivatives of phenanthroindolizidine alkaloids display different in vitro antitumor activity. NEW J CHEM 2013. [DOI: 10.1039/c3nj00031a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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27
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Lee YZ, Yang CW, Hsu HY, Qiu YQ, Yeh TK, Chang HY, Chao YS, Lee SJ. Synthesis and biological evaluation of tylophorine-derived dibenzoquinolines as orally active agents: exploration of the role of tylophorine e ring on biological activity. J Med Chem 2012; 55:10363-77. [PMID: 23167614 DOI: 10.1021/jm300705j] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A series of novel tylophorine-derived dibenzoquinolines has been synthesized and their biological activity evaluated. Three assays were conducted: inhibition of cancer cell proliferation, inhibition of TGEV replication for anticoronavirus activity, and suppression of nitric oxide production in RAW264.7 cells (a measure of anti-inflammation). The most potent compound from these assays, dibenzoquinoline 33b, showed improved solubility compared to tylophorine 9a, in vivo efficacies in a lung A549 xenografted tumor mouse model and a murine paw edema model, good bioavailability, and no significant neurotoxicity (as tested by a rota-rod test for motor coordination). This is the first study to explore in detail the role of the tylophorine E ring on biological activity and very strongly suggests that tylophorine-derived dibenzoquinolines merit further development into orally active agents.
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Affiliation(s)
- Yue-Zhi Lee
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, No. 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
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28
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Niphakis MJ, Gay BC, Hong KH, Bleeker NP, Georg GI. Synthesis and evaluation of the anti-proliferative and NF-κB activities of a library of simplified tylophorine analogs. Bioorg Med Chem 2012; 20:5893-900. [DOI: 10.1016/j.bmc.2012.07.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Revised: 07/14/2012] [Accepted: 07/24/2012] [Indexed: 01/20/2023]
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29
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Lv H, Ren J, Ma S, Xu S, Qu J, Liu Z, Zhou Q, Chen X, Yu S. Synthesis, biological evaluation and mechanism studies of deoxytylophorinine and its derivatives as potential anticancer agents. PLoS One 2012; 7:e30342. [PMID: 22276180 PMCID: PMC3261902 DOI: 10.1371/journal.pone.0030342] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 12/14/2011] [Indexed: 12/30/2022] Open
Abstract
Previous studies indicated that (+)-13a-(S)-deoxytylophorinine (1) showed profound anti-cancer activities both in vitro and in vivo and could penetrate the blood brain barrier to distribute well in brain tissues. CNS toxicity, one of the main factors to hinder the development of phenanthroindolizidines, was not obviously found in 1. Based on its fascinating activities, thirty-four derivatives were designed, synthesized; their cytotoxic activities in vitro were tested to discover more excellent anticancer agents. Considering the distinctive mechanism of 1 and interesting SAR of deoxytylophorinine and its derivatives, the specific impacts of these compounds on cellular progress as cell signaling transduction pathways and cell cycle were proceeded with seven representative compounds. 1 as well as three most potent compounds, 9, 32, 33, and three less active compounds, 12, 16, 35, were selected to proform this study to have a relatively deep view of cancer cell growth-inhibitory characteristics. It was found that the expressions of phospho-Akt, Akt, phospho-ERK, and ERK in A549 cells were greater down-regulated by the potent compounds than by the less active compounds in the Western blot analysis. To the best of our knowledge, this is the first report describing phenanthroindolizidines alkaloids display influence on the crucial cell signaling proteins, ERK. Moreover, the expressions of cyclin A, cyclin D1 and CDK2 proteins depressed more dramatically when the cells were treated with 1, 9, 32, and 33. Then, these four excellent compounds were subjected to flow cytometric analysis, and an increase in S-phase was observed in A549 cells. Since the molecular level assay results of Western blot for phospho-Akt, Akt, phospho-ERK, ERK, and cyclins were relevant to the potency of compounds in cellular level, we speculated that this series of compounds exhibit anticancer activities through blocking PI3K and MAPK signaling transduction pathways and interfering with the cell cycle progression.
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Affiliation(s)
- Haining Lv
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Jinhong Ren
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Shuanggang Ma
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Song Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Jing Qu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Zhenjia Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Qing Zhou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Xiaoguang Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Shishan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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30
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Pansare SV, Dyapa R. Enantioselective approach to functionalized quinolizidines: synthesis of (+)-julandine and (+)-cryptopleurine. Org Biomol Chem 2012; 10:6776-84. [DOI: 10.1039/c2ob25689d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Chuang TH, Chang WY, Li CF, Wen YC, Tsai CC. Substituent Effects on the Iodine-Catalyzed Thermal Cyclization of 3,4-Diphenylbuta-1,3-dienyl Isocyanates: Mechanistic Studies. J Org Chem 2011; 76:9678-86. [DOI: 10.1021/jo2017247] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ta-Hsien Chuang
- School of Pharmacy, China Medical University, No. 91, Hsueh-Shih Road,
Taichung 40402, Taiwan, Republic of China
| | - Wei-Yu Chang
- School of Pharmacy, China Medical University, No. 91, Hsueh-Shih Road,
Taichung 40402, Taiwan, Republic of China
| | - Chien-Fu Li
- School of Pharmacy, China Medical University, No. 91, Hsueh-Shih Road,
Taichung 40402, Taiwan, Republic of China
| | - Yu-Chia Wen
- School of Pharmacy, China Medical University, No. 91, Hsueh-Shih Road,
Taichung 40402, Taiwan, Republic of China
| | - Chia-Chen Tsai
- School of Pharmacy, China Medical University, No. 91, Hsueh-Shih Road,
Taichung 40402, Taiwan, Republic of China
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32
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Hsu SF, Ko CW, Wu YT. Cobalt-Catalyzed Carbon-Carbon Bond Formation: Synthesis and Applications of Enantiopure Pyrrolidine Derivatives[1]. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100220] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Nassar-Hardy L, Deraedt C, Fouquet E, Felpin FX. A Fully Palladium-Mediated Construction of Phenanthrenes and Naphthoxindoles. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100477] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Yang CW, Lee YZ, Kang IJ, Barnard DL, Jan JT, Lin D, Huang CW, Yeh TK, Chao YS, Lee SJ. Identification of phenanthroindolizines and phenanthroquinolizidines as novel potent anti-coronaviral agents for porcine enteropathogenic coronavirus transmissible gastroenteritis virus and human severe acute respiratory syndrome coronavirus. Antiviral Res 2010; 88:160-8. [PMID: 20727913 PMCID: PMC7114283 DOI: 10.1016/j.antiviral.2010.08.009] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 08/07/2010] [Accepted: 08/12/2010] [Indexed: 11/28/2022]
Abstract
The discovery and development of new, highly potent anti-coronavirus agents and effective approaches for controlling the potential emergence of epidemic coronaviruses still remains an important mission. Here, we identified tylophorine compounds, including naturally occurring and synthetic phenanthroindolizidines and phenanthroquinolizidines, as potent in vitro inhibitors of enteropathogenic coronavirus transmissible gastroenteritis virus (TGEV). The potent compounds showed 50% maximal effective concentration (EC₅₀) values ranging from 8 to 1468 nM as determined by immunofluorescent assay of the expression of TGEV N and S proteins and by real time-quantitative PCR analysis of viral yields. Furthermore, the potent tylophorine compounds exerted profound anti-TGEV replication activity and thereby blocked the TGEV-induced apoptosis and subsequent cytopathic effect in ST cells. Analysis of the structure-activity relations indicated that the most active tylophorine analogues were compounds with a hydroxyl group at the C14 position of the indolizidine moiety or at the C3 position of the phenanthrene moiety and that the quinolizidine counterparts were more potent than indolizidines. In addition, tylophorine compounds strongly reduced cytopathic effect in Vero 76 cells induced by human severe acute respiratory syndrome coronavirus (SARS CoV), with EC₅₀ values ranging from less than 5 to 340 nM. Moreover, a pharmacokinetic study demonstrated high and comparable oral bioavailabilities of 7-methoxycryptopleurine (52.7%) and the naturally occurring tylophorine (65.7%) in rats. Thus, our results suggest that tylophorine compounds are novel and potent anti-coronavirus agents that may be developed into therapeutic agents for treating TGEV or SARS CoV infection.
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Affiliation(s)
- Cheng-Wei Yang
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan, ROC
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Cui M, Song H, Feng A, Wang Z, Wang Q. Asymmetric Synthesis of (R)-Antofine and (R)-Cryptopleurine via Proline-Catalyzed Sequential α-Aminoxylation and Horner−Wadsworth−Emmons Olefination of Aldehyde. J Org Chem 2010; 75:7018-21. [DOI: 10.1021/jo101510x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mingbo Cui
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Anzheng Feng
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Ziwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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Wang Z, Li Z, Wang K, Wang Q. Efficient and Chirally Specific Synthesis of Phenanthro-Indolizidine Alkaloids by Parham-Type Cycloacylation. European J Org Chem 2010. [DOI: 10.1002/ejoc.200900920] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Synthesis and antitumor activities of phenanthrene-based alkaloids. Molecules 2009; 14:5042-53. [PMID: 20032876 PMCID: PMC6255436 DOI: 10.3390/molecules14125042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 11/25/2009] [Accepted: 12/02/2009] [Indexed: 11/16/2022] Open
Abstract
A series of phenanthrene-based tylophorine derivatives (PBTs) were synthesized and their cytotoxic activities against the H460 human large-cell lung carcinoma cell line were evaluated. Among these compounds, N-(3-hydroxy-2,6,7-tri-methoxyphenanthr-9-ylmethyl)-L-prolinol (5a), and N-(3-hydroxy-2,6,7-trimethoxy-phenanthr-9-ylmethyl)-L-valinol (9) exhibited good activities, with IC(50) values of 11.6 and 6.1 microM, respectively.
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Rossiter LM, Slater ML, Giessert RE, Sakwa SA, Herr RJ. A Concise Palladium-Catalyzed Carboamination Route to (±)-Tylophorine. J Org Chem 2009; 74:9554-7. [DOI: 10.1021/jo902114u] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lana M. Rossiter
- Medicinal Chemistry Department, Albany Molecular Research, Inc. (AMRI), P.O. Box 15098, 26 Corporate Circle, Albany, New York 12212-5098
| | - Meagan L. Slater
- Medicinal Chemistry Department, Albany Molecular Research, Inc. (AMRI), P.O. Box 15098, 26 Corporate Circle, Albany, New York 12212-5098
| | - Rachel E. Giessert
- Medicinal Chemistry Department, Albany Molecular Research, Inc. (AMRI), P.O. Box 15098, 26 Corporate Circle, Albany, New York 12212-5098
| | - Samuel A. Sakwa
- Medicinal Chemistry Department, Albany Molecular Research, Inc. (AMRI), P.O. Box 15098, 26 Corporate Circle, Albany, New York 12212-5098
| | - R. Jason Herr
- Medicinal Chemistry Department, Albany Molecular Research, Inc. (AMRI), P.O. Box 15098, 26 Corporate Circle, Albany, New York 12212-5098
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Synthesis of (S)-(+)-tylophorine and its seco analogues using free radical reaction. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0183-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Synthesis and reductive desulfurization of chiral non-racemic benzothienoindolizines. An efficient approach to a novel bioactive tylophorine alkaloid analogue and 6-phenylindolizidine. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.08.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Wu CM, Yang CW, Lee YZ, Chuang TH, Wu PL, Chao YS, Lee SJ. Tylophorine arrests carcinoma cells at G1 phase by downregulating cyclin A2 expression. Biochem Biophys Res Commun 2009; 386:140-5. [DOI: 10.1016/j.bbrc.2009.05.138] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Accepted: 05/30/2009] [Indexed: 10/20/2022]
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Šafář P, Žúžiová J, Marchalín Š, Tóthová E, Prónayová N, Švorc Ľ, Vrábel V, Daïch A. Highly diastereoselective approach to novel phenylindolizidinols via benzothieno analogues of tylophorine based on reductive desulfurization of benzo[b]thiophene. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.02.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Yamashita S, Kurono N, Senboku H, Tokuda M, Orito K. Synthesis of Phenanthro[9,10-b]indolizidin-9-ones, Phenanthro[9,10-b]quinolizidin-9-one, and Related Benzolactams by Pd(OAc)2-Catalyzed Direct Aromatic Carbonylation. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801047] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chemler SR. Phenanthroindolizidines and Phenanthroquinolizidines: Promising Alkaloids for Anti-Cancer Therapy. ACTA ACUST UNITED AC 2009; 5:2-19. [PMID: 20160962 DOI: 10.2174/157340709787580928] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The phenanthroindolizidine and phenanthroquinolizidine alkaloids, typified by tylophorine and cryptopleurine, are a family of plant-derived small molecules with significant therapeutic potential. The plant extracts have been used in herbal medicine and the isolated compounds have displayed a range of promising therapeutic activity such as anti-ameobicidal, anti-viral, anti-inflammatory and anti-cancer activity. Despite their therapeutic protential, no compounds in this class have fully passed clinical trials. Drawbacks include low in vivo anti-cancer activity, central nervous system toxicity and low natural availability. A number of biological effects of these compounds, such as protein and nucleic acid synthesis suppression, have been identified, but the specific biomolecular targets have not yet been identified. Significant effort has been expended in the synthesis and structure-activity-relationship (SAR) studies of these compounds with the hope that a new drug will emerge. This review will highlight important contributions to the isolation, synthesis, SAR and mechanism of action of the phenanthroindolizidine and pheanthroquinolizidine alkaloids.
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Affiliation(s)
- Sherry R Chemler
- The University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
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LÜ MY, WANG KL, CAI F, WANG HY, WANG QM. A Novel Practical Synthesis of Phenanthrenes Using Iron(III) Chloride Involved Intramolecular Oxidative Coupling at Room Temperature. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890398] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bertrand MB, Neukom JD, Wolfe JP. Mild conditions for Pd-catalyzed carboamination of N-protected hex-4-enylamines and 1-, 3-, and 4-substituted pent-4-enylamines. Scope, limitations, and mechanism of pyrrolidine formation. J Org Chem 2008; 73:8851-60. [PMID: 18942792 PMCID: PMC2633938 DOI: 10.1021/jo801631v] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of the weak base Cs2CO3 in Pd-catalyzed carboamination reactions of N-protected gamma-aminoalkenes with aryl bromides leads to greatly increased tolerance of functional groups and alkene substitution. Substrates derived from (E)- or (Z)-hex-4-enylamines are stereospecifically converted to 2,1'-disubstituted pyrrolidine products that result from suprafacial addition of the nitrogen atom and the aryl group across the alkene. Transformations of 4-substituted pent-4-enylamine derivatives proceed in high yield to afford 2,2-disubstituted products, and cis-2,5- or trans-2,3-disubstituted pyrrolidines are generated in good yield with excellent diastereoselectivity from N-protected pent-4-enylamines bearing substituents at C1 or C3. The reactions tolerate a broad array of functional groups, including esters, nitro groups, and enolizable ketones. The scope and limitations of these transformations are described in detail, along with models that account for the observed product stereochemistry. In addition, deuterium labeling experiments, which indicate these reactions proceed via syn-aminopalladation of intermediate palladium(aryl)(amido)complexes regardless of degree of alkene substitution or reaction conditions, are also discussed.
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Affiliation(s)
| | - Joshua D. Neukom
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan, 48109-1055
| | - John P. Wolfe
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, Michigan, 48109-1055
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Iron(III) chloride-based mild synthesis of phenanthrene and its application to total synthesis of phenanthroindolizidine alkaloids. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Jao CW, Lin WC, Wu YT, Wu PL. Isolation, structure elucidation, and synthesis of cytotoxic tryptanthrin analogues from Phaius mishmensis. JOURNAL OF NATURAL PRODUCTS 2008; 71:1275-1279. [PMID: 18507473 DOI: 10.1021/np800064w] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Bioassay-guided chromatographic separation of the cytotoxic MeOH extract of Phaius mishmensis led to the isolation of two known and six new indoloquinazolinones, phaitanthrins A-E (1-5) and methylisatoid (6). The structures of the new compounds were elucidated by spectroscopic analysis. Phaitanthrin A (1) and tryptanthrin (7) showed moderate cytotoxicity against MCF-7, NCI-H460, and SF-268 cell lines. A series of ketone adducts of tryptanthrin were prepared and tested initially for anticancer activity in vitro against MCF-7, NCI-H460, and SF-268 human cancer cell lines. The 3-pentanone adduct 13 showed activity similar to tryptanthrin.
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Affiliation(s)
- Chen-Wei Jao
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan, Republic of China
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