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Ding CF, Zhang RP, Yu HF, Yang J, Qin XJ, Dai Z, Liu YP, Lu QM, Lai R, Luo XD. Hybrid isoquinolines from Thalictrum foetidum: a new type of aporphine inhibiting Staphylococcus aureus by combined mechanisms. Org Chem Front 2019. [DOI: 10.1039/c9qo00737g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thalfoetines A–D (1–4), unique hybrid aporphine alkaloids with a C-7 aromatic unit formed by a new C–C bond linking two building blocks, were isolated from Thalictrum foetidum.
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52
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Boora R, kumar GR, Subba Reddy BV. Metal-free oxidative acylation/cyclization of N-methacryloyl-2-phenylbenzoimidazole with aryl aldehydes: an easy access to benzimidazo[2,1-a]isoquinolin-6(5H)-ones. Org Biomol Chem 2019; 17:9627-9630. [DOI: 10.1039/c9ob01979k] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A metal-free radical cyclization strategy has been developed for the synthesis of fused benzimidazo[2,1-a]isoquinolin-6(5H)-one derivatives using 70% tert-butylhydroperoxide in water (TBHP).
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Affiliation(s)
- Ramesh Boora
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| | - G. Ravi kumar
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| | - B. V. Subba Reddy
- Centre for Semiochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
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Rana P, Gaur R, Gupta R, Arora G, Jayashree A, Sharma RK. Cross-dehydrogenative C(sp3)–C(sp3) coupling via C–H activation using magnetically retrievable ruthenium-based photoredox nanocatalyst under aerobic conditions. Chem Commun (Camb) 2019; 55:7402-7405. [DOI: 10.1039/c9cc02386k] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A robust, magnetically retrievable photoredox Ru-based heterogeneous nanocatalyst was fabricated for the highly regio-selective synthesis of N-aryl-tetrahydroisoquinoline derivatives.
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Affiliation(s)
- Pooja Rana
- Green Chemistry Network Centre
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Rashmi Gaur
- Green Chemistry Network Centre
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Radhika Gupta
- Green Chemistry Network Centre
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Gunjan Arora
- Green Chemistry Network Centre
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - A. Jayashree
- Centre for Chemical Sciences & Technology
- IST
- Jawaharlal Nehru Technological University
- Hyderabad 500085
- India
| | - Rakesh Kumar Sharma
- Green Chemistry Network Centre
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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54
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Zhang YT, Yu YQ, Yan XX, Wang WJ, Tian XT, Wang L, Zhu WL, Gong LK, Pan GY. Different structures of berberine and five other protoberberine alkaloids that affect P-glycoprotein-mediated efflux capacity. Acta Pharmacol Sin 2019; 40:133-142. [PMID: 30442987 DOI: 10.1038/s41401-018-0183-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/10/2018] [Indexed: 11/09/2022] Open
Abstract
Berberine, berberrubine, thalifendine, demethyleneberberine, jatrorrhizine, and columbamine are six natural protoberberine alkaloid (PA) compounds that display extensive pharmacological properties and share the same protoberberine molecular skeleton with only slight substitution differences. The oral delivery of most PAs is hindered by their poor bioavailability, which is largely caused by P-glycoprotein (P-gp)-mediated drug efflux. Meanwhile, P-gp undergoes large-scale conformational changes (from an inward-facing to an outward-facing state) when transporting substrates, and these changes might strongly affect the P-gp-binding specificity. To confirm whether these six compounds are substrates of P-gp, to investigate the differences in efflux capacity caused by their trivial structural differences and to reveal the key to increasing their binding affinity to P-gp, we conducted a series of in vivo, in vitro, and in silico assays. Here, we first confirmed that all six compounds were substrates of P-gp by comparing the drug concentrations in wild-type and P-gp-knockout mice in vivo. The efflux capacity (net efflux) ranked as berberrubine > berberine > columbamine ~ jatrorrhizine > thalifendine > demethyleneberberine based on in vitro transport studies in Caco-2 monolayers. Using molecular dynamics simulation and molecular docking techniques, we determined the transport pathways of the six compounds and their binding affinities to P-gp. The results suggested that at the early binding stage, different hydrophobic and electrostatic interactions collectively differentiate the binding affinities of the compounds to P-gp, whereas electrostatic interactions are the main determinant at the late release stage. In addition to hydrophobic interactions, hydrogen bonds play an important role in discriminating the binding affinities.
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Sóvári D, Kormos A, Demeter O, Dancsó A, Keserű GM, Milen M, Ábrányi-Balogh P. Synthesis and fluorescent properties of boroisoquinolines, a new family of fluorophores. RSC Adv 2018; 8:38598-38605. [PMID: 35559080 PMCID: PMC9090577 DOI: 10.1039/c8ra08241c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/08/2018] [Indexed: 11/21/2022] Open
Abstract
First representatives of a new family of isoquinolines, so called boroisoquinolines, were synthesized and characterized. The synthesis was based on the insertion of the difluoroboranyl group into the 1-methylidene-3,4-dihydroisoquinoline core. The optimization of the 2-difluoroboranyl-3,4-dihydroisoquinoline-1(2H)-ylidene core led to efficient fluorescence in a range of 400-600 nm with outstanding (>100 nm) Stokes shifts. The compounds might be suitable for reversible or irreversible labelling of proteins, particularly the cannabinoid receptor CB2.
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Affiliation(s)
- Dénes Sóvári
- Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute of Organic Chemistry, Medicinal Chemistry Research Group 1519 Budapest POB 286 Hungary +36 1 3826961
| | - Attila Kormos
- Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute of Organic Chemistry, Chemical Biology Research Group 1519 Budapest POB 286 Hungary
| | - Orsolya Demeter
- Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute of Organic Chemistry, Chemical Biology Research Group 1519 Budapest POB 286 Hungary
| | - András Dancsó
- Egis Pharmaceuticals Plc., Directorate of Drug Substance Development 1475 Budapest POB 100 Hungary
| | - György Miklós Keserű
- Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute of Organic Chemistry, Medicinal Chemistry Research Group 1519 Budapest POB 286 Hungary +36 1 3826961
| | - Mátyás Milen
- Egis Pharmaceuticals Plc., Directorate of Drug Substance Development 1475 Budapest POB 100 Hungary
| | - Péter Ábrányi-Balogh
- Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute of Organic Chemistry, Medicinal Chemistry Research Group 1519 Budapest POB 286 Hungary +36 1 3826961
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Park AR, Yum EK. Introduction of Diverse Functional Groups to Isoquinolines by Microwave-assisted Transition Metal-catalyzed Coupling Reactions. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11585] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Reum Park
- Department of Chemistry; Chungnam National University; Daejon 34134 Korea
| | - Eul Kgun Yum
- Department of Chemistry; Chungnam National University; Daejon 34134 Korea
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57
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Wang Y, Wang D, Zhang J, Liu D, Wang Z, Meng D. Isoquinolines from Corydalis tomentella from Tibet, China, possess hepatoprotective activities. PHYTOCHEMISTRY 2018; 155:93-99. [PMID: 30081273 DOI: 10.1016/j.phytochem.2018.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/16/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
The phytochemical study on Corydalis tomentella Franch, a traditional Chinese medicinal plant in Tibet, China, led to the isolation of six previously undescribed isoquinolines, including two rarely reported N-benzyl ones, and twenty-one known ones firstly obtained from this plant. Their planar structures were elucidated by 1D, 2D NMR experiments and high resolution mass spectrometry, and the absolute configurations were determined by NOE experiments, electronic circular dichroism, and specific rotation. Seven isoquinolines exhibited stronger hepatoprotective activities than that of positive control in D-galactosamine induced L02 cells damage model, which could be served as the leading compounds for further investigations. The primary structure-activity relationship was also summarized accordingly.
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Affiliation(s)
- Yingjiao Wang
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China
| | - Dandan Wang
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China
| | - Jianhua Zhang
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China
| | - Dan Liu
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China
| | - Zihao Wang
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China
| | - Dali Meng
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery (Shenyang Pharmaceutical University), Ministry of Education, Wenhua Road 103, Shenyang, 110016, PR China.
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58
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Chen J, Lin X, Park KJ, Lee KR, Park HJ. Identification of protoberberine alkaloids as novel histone methyltransferase G9a inhibitors by structure-based virtual screening. J Comput Aided Mol Des 2018; 32:917-928. [DOI: 10.1007/s10822-018-0156-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/29/2018] [Indexed: 10/28/2022]
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Doncheva T, Kostova N, Valcheva V, Toshkovska R, Vutov V, Philipov S. Hypepontine, a new quaternary alkaloid with antimicrobial properties. Nat Prod Res 2018; 34:668-674. [PMID: 30117330 DOI: 10.1080/14786419.2018.1495640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
New isoquinoline alkaloid hypepontine (1) together with a five known compounds, were identified in Hypecoum ponticum Velen, the partial synonym of Hypecoum procumbens L. The structure of the new substance was elucidated based on spectroscopic evidence. The tertiary and quaternary alkaloid mixtures as well as the isolated alkaloids were evaluated for their antibacterial and antifungal activity. The result revealed that the crude alkaloid mixture containing quaternary isoquinoline alkaloids showed potent antifungal and antibacterial activity.
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Affiliation(s)
- Tsvetelina Doncheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Nadezhda Kostova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Violeta Valcheva
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.,In Vitro Laboratory for Evaluation of Biological Activity and Toxicity, Sofia Tech Park, Sofia, Bulgaria
| | - Radostina Toshkovska
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Vassil Vutov
- National Museum of Natural History, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Stefan Philipov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Asako T, Suzuki S, Itami K, Muto K, Yamaguchi J. Synthesis of a Heptaarylisoquinoline: Unusual Disconnection for Constructing Isoquinoline Frameworks. CHEM LETT 2018. [DOI: 10.1246/cl.180429] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Takashi Asako
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Shin Suzuki
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Kenichiro Itami
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Kei Muto
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
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Zheng B, Trieu TH, Li FL, Zhu XL, He YG, Fan QQ, Shi XX. Copper-Catalyzed Benign and Efficient Oxidation of Tetrahydroisoquinolines and Dihydroisoquinolines Using Air as a Clean Oxidant. ACS OMEGA 2018; 3:8243-8252. [PMID: 31458961 PMCID: PMC6644811 DOI: 10.1021/acsomega.8b00855] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 06/06/2018] [Indexed: 06/10/2023]
Abstract
A green chemical method for mild oxidation of 1,2,3,4-tetrahydroisoquinolines (THIQs) and 3,4-dihydroisoquinolines (DHIQs) has been developed using air (O2) as a clean oxidant. DHIQs and THIQs could be efficiently oxidized to isoquinolines in dimethyl sulfoxide at 25 °C under an open air atmosphere with CuBr2 (20 mol %) as the catalyst; different bases [NaOEt and/or 1,8-diazabicyclo[5,4,0]undec-7-ene] were used for the reaction according to the patterns of substituents (R1, R2).
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Affiliation(s)
- Bo Zheng
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Tien Ha Trieu
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Feng-Lei Li
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Xing-Liang Zhu
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Yun-Gang He
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Qi-Qi Fan
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Xiao-Xin Shi
- Shanghai
Key Laboratory of Chemical Biology, School of Pharmacy, and Department of
Pharmaceutical Engineering, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
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The antithrombotic, anticoagulant activity and toxicity research of ambinine, an alkaloid from the tuber of Corydalis ambigua var. amurensis. Regul Toxicol Pharmacol 2018. [DOI: 10.1016/j.yrtph.2018.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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63
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Naseri M, Emami SA, Asili J, Tayarani-Najaran Z, Dehghan G, Schneider B, Iranshahi M. Rupestrines A-D, alkaloids from the aerial parts of Corydalis rupestris. Bioorg Chem 2018; 77:651-659. [DOI: 10.1016/j.bioorg.2018.02.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 02/14/2018] [Accepted: 02/16/2018] [Indexed: 01/25/2023]
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Zhang J, Zhang QY, Tu PF, Xu FC, Liang H. Mucroniferanines A-G, Isoquinoline Alkaloids from Corydalis mucronifera. JOURNAL OF NATURAL PRODUCTS 2018; 81:364-370. [PMID: 29400966 DOI: 10.1021/acs.jnatprod.7b00847] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Five pairs of isoquinoline alkaloid enantiomers, mucroniferanines A-E (1-5), two inseparable epimeric pairs, mucroniferanines F and G (6, 7), and 10 known isoquinoline alkaloids (8-17) were obtained from Corydalis mucronifera. The structures were characterized using spectroscopic data analysis, and the absolute configurations were established by ECD and X-ray data analysis. The new compounds except for 3 possess a rare 9-methyl group in the isoquinoline alkaloids, and compounds 2 and 3 possess rare benzo[1,2-d:3,4-d]bis[1,3]dioxole moieties. It is the first report of stereoisomerism involving the 9-methyl phthalideisoquinoline alkaloids. Compounds (-)-4, 6, and 7 exhibited acetylcholinesterase inhibitory activities with IC50 values of 28.3, 12.2, and 11.3 μM, respectively.
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Affiliation(s)
- Jun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Qing-Ying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
| | - Fu-Chun Xu
- Medical College of Tibet University , Lhasa 850000, People's Republic of China
| | - Hong Liang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191, People's Republic of China
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Cao TQ, Ngo QMT, Seong SH, Youn UJ, Kim JA, Kim J, Kim JC, Woo MH, Choi JS, Min BS. Cholinesterase inhibitory alkaloids from the rhizomes of Coptis chinensis. Bioorg Chem 2018; 77:625-632. [PMID: 29502023 DOI: 10.1016/j.bioorg.2018.01.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/23/2018] [Accepted: 01/27/2018] [Indexed: 12/17/2022]
Abstract
Coptis chinensis has been used as a medicinal herb in traditional oriental medicine. In this study, chemical investigation of a water extract of C. chinensis identified two new quaternary protoberberines (1, 2), a new tricyclic amide (3), together with five known compounds. Their chemical structures were elucidated by analysis with 1D and 2D NMR and high-resolution mass spectroscopy, as well as by comparison with those reported in the literature. Compounds 4, 5, and 7 showed potent inhibition against acetylcholinesterase (AChE) with IC50 values of 1.1, 5.6, and 12.9 μM, respectively. Compounds 2 and 4 showed inhibition of butyrylcholinesterase (BChE) with IC50 values of 11.5 and 27.8 μM, respectively. The kinetic activities were investigated to find out the type of enzyme inhibition involved. The types of AChE inhibition shown by compounds 5 and 7 were noncompetitive; BChE inhibition by compound 2 was also noncompetitive.
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Affiliation(s)
- Thao Quyen Cao
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Quynh-Mai Thi Ngo
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Su Hui Seong
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea
| | - Ui Joung Youn
- Division of Life Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea
| | - Jeong Ah Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Junheon Kim
- Division of Forest Disease and Insect Pests, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Jin-Cheol Kim
- College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Mi Hee Woo
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea.
| | - Byung Sun Min
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea.
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Shepherd C, Giacomin P, Navarro S, Miller C, Loukas A, Wangchuk P. A medicinal plant compound, capnoidine, prevents the onset of inflammation in a mouse model of colitis. JOURNAL OF ETHNOPHARMACOLOGY 2018; 211:17-28. [PMID: 28942135 DOI: 10.1016/j.jep.2017.09.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/13/2017] [Accepted: 09/18/2017] [Indexed: 05/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The traditional uses of Corydalis dubia, Ajania nubigena and Pleurospermum amabile in the Bhutanese traditional medicine for treating disorders related to inflammatory conditions and the in vitro anti-inflammatory activity of their crude extracts inspired the isolation and the investigation of anticolitic properties of four pure compounds. MATERIALS AND METHODS Three medicinal plants were collected from Himalayan Mountains of Bhutan. Capnoidine and scoulerine were isolated from C. dubia, linalool oxide acetate from A. nubigena and isomyristicin from P. amabile using natural product isolation protocols. Four compounds were investigated for their anti-inflammatory activities against IBD-colitis using chemically induced (TNBS) mice model of colitis. Capnoidine conferred the best preliminary protection against TNBS-induced colitis in mice and we have conducted in-depth pharmacological investigation of this compound including clinical symptoms, pathological signs, cytokine profiles, histological structure and inflammasomes using relevant bioassay protocols. RESULTS Capnoidine-treated mice had significantly: a) improved clinical symptoms (body weight loss, mobility, piloerection and faecal consistency); b) reduced colon pathology (adhesion, oedema, ulceration, and colon length); c) altered inflammatory cytokines profiles within the colons; d) reduced levels of p-IκB-α (Ser32) and p-NF-κB p65 (Ser536) and e) reduced histological inflammation in the colon when compared with mice administered TNBS only. CONCLUSION Capnoidine presents as a potential new anti-inflammatory drug lead candidate for diseases where current standard-of-care often fails and is associated with major side effects. It also validates the traditional uses of C. dubia against inflammatory conditions and underlines the value of pursuing bioactive compounds derived from traditionally used ethnobotanical medicines.
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Affiliation(s)
- Catherine Shepherd
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns QLD 4878, Australia
| | - Paul Giacomin
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns QLD 4878, Australia
| | - Severine Navarro
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns QLD 4878, Australia
| | - Catherine Miller
- College of Public Health, Medical and Veterinary Sciences and Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Alex Loukas
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns QLD 4878, Australia
| | - Phurpa Wangchuk
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns QLD 4878, Australia.
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Sau P, Rakshit A, Modi A, Behera A, Patel BK. Three Sequential C–N Bond Formations: tert-Butyl Nitrite as a N1 Synthon in a Three Component Reaction Leading to Imidazo[1,2-a]quinolines and Imidazo[2,1-a]isoquinolines. J Org Chem 2018; 83:1056-1064. [DOI: 10.1021/acs.joc.7b02815] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Prasenjit Sau
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anju Modi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ahalya Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Bhisma K. Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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Mondal A, Kundu P, Jash M, Chowdhury C. Palladium-catalysed stereoselective synthesis of 4-(diarylmethylidene)-3,4-dihydroisoquinolin-1(2H)-ones: expedient access to 4-substituted isoquinolin-1(2H)-ones and isoquinolines. Org Biomol Chem 2018; 16:963-980. [DOI: 10.1039/c7ob02788e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Palladium-catalysed stereoselective synthesis of 4-(diarylmethylidene)-3,4-dihydroisoquinolin-1(2H)-ones and their straightforward transformations to 4-substituted isoquinolin-1(2H)-ones and isoquinolines are described.
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Affiliation(s)
- Amrita Mondal
- Organic and Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR)
- Kolkata-700032
- India
| | - Priyanka Kundu
- Organic and Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR)
- Kolkata-700032
- India
| | - Moumita Jash
- Organic and Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR)
- Kolkata-700032
- India
| | - Chinmay Chowdhury
- Organic and Medicinal Chemistry Division
- Indian Institute of Chemical Biology (CSIR)
- Kolkata-700032
- India
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69
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Papi F, Ferraroni M, Rigo R, Da Ros S, Bazzicalupi C, Sissi C, Gratteri P. Role of the Benzodioxole Group in the Interactions between the Natural Alkaloids Chelerythrine and Coptisine and the Human Telomeric G-Quadruplex DNA. A Multiapproach Investigation. JOURNAL OF NATURAL PRODUCTS 2017; 80:3128-3135. [PMID: 29148767 DOI: 10.1021/acs.jnatprod.7b00350] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The binding properties toward the human telomeric G-quadruplex of the two natural alkaloids coptisine and chelerythrine were studied using spectroscopic techniques, molecular modeling, and X-ray diffraction analysis. The results were compared with reported data for the parent compounds berberine and sanguinarine. Spectroscopic studies showed modest, but different rearrangements of the DNA-ligand complexes, which can be explained considering particular stereochemical features for these alkaloids, in spite of the similarity of their skeletons. In fact, the presence of a dioxolo moiety rather than the two methoxy functions improves the efficiency of coptisine and sanguinarine in comparison to berberine and chelerythrine, and the overall stability trend is sanguinarine > chelerythrine ≈ coptisine > berberine. Accordingly, the X-ray diffraction analysis confirmed the involvement of the benzodioxolo groups in the coptisine/DNA binding by means of π···π, O···π, and CH···O interactions. Similar information is provided by modeling studies, which, additionally, evidenced reasons for the quadruplex vs double-helix selectivity shown by these alkaloids. Thus, the analyses shed light on the key role of the benzodioxolo moieties in strengthening the interaction with the G4-folded human telomeric sequence and indicated the superior G4 stabilizing properties of the benzophenanthridine scaffold with respect to the protoberberine one and conversely the better G4 vs dsDNA selectivity profile of coptisine over the other alkaloids.
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Affiliation(s)
- F Papi
- Department of Chemistry "U. Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
- Department Neurofarba-Pharmaceutical and Nutraceutical Section and Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence , Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - M Ferraroni
- Department of Chemistry "U. Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - R Rigo
- Department of Pharmaceutical and Pharmacological Science, University of Padua , Via F. Marzolo 5, 35131 Padua, Italy
| | - S Da Ros
- Department of Pharmaceutical and Pharmacological Science, University of Padua , Via F. Marzolo 5, 35131 Padua, Italy
| | - C Bazzicalupi
- Department of Chemistry "U. Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - C Sissi
- Department of Pharmaceutical and Pharmacological Science, University of Padua , Via F. Marzolo 5, 35131 Padua, Italy
| | - P Gratteri
- Department Neurofarba-Pharmaceutical and Nutraceutical Section and Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence , Via U. Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
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70
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Lobbens ESB, Vissing KJ, Jorgensen L, van de Weert M, Jäger AK. Screening of plants used in the European traditional medicine to treat memory disorders for acetylcholinesterase inhibitory activity and anti amyloidogenic activity. JOURNAL OF ETHNOPHARMACOLOGY 2017; 200:66-73. [PMID: 28213109 DOI: 10.1016/j.jep.2017.02.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 01/20/2017] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plants used in the traditional medicine of Europe to treat memory dysfunction and/or to enhance memory were investigated for activity against the underlying mechanisms of Alzheimer's disease. AIM OF THE STUDY To investigate 35 ethanolic extracts of plants, selected using an ethnopharmacological approach, for anti-amyloidogenic activity as well as an ability to inhibit the enzymatic activity of acetylcholinesterase. MATERIALS AND METHODS The anti-amyloidogenic activity of the extracts against amyloid beta was investigated by Thioflavin T fibrillation assays and the ability to inhibit the enzymatic activity of acetylcholinesterase was evaluated monitoring the hydrolysis of acetylthiocholine RESULTS: Under the experimental conditions investigated, extracts of two plants, Carum carvi and Olea sylvestris, inhibited amyloid beta fibrillation considerably, eight plant extracts inhibited amyloid beta fibrillation to some extent, 16 plant extracts had no effect on amyloid beta fibrillation and nine extracts accelerated fibrillation of amyloid beta. Furthermore, five plant extracts from Corydalis species inhibited the enzymatic activity of acetylcholinesterase considerably, one plant extract inhibited the enzymatic activity of acetylcholinesterase to some extent and 29 plant extract had no effect on the enzymatic activity of acetylcholinesterase. CONCLUSIONS An optimal extract in this study would possess acetylcholinesterase inhibitory activity as well as anti-amyloidogenic activity in order to address multiple facets of Alzheimer's disease, until the molecular origin of the disease is unraveled. Unfortunately no such extract was found.
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Affiliation(s)
- Eva S B Lobbens
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
| | - Karina J Vissing
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
| | - Lene Jorgensen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
| | - Marco van de Weert
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
| | - Anna K Jäger
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
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71
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Hu Y, Lin F, Wu T, Zhou Y, Li Q, Shao Y, Xu Z. DNA Duplex Engineering for Enantioselective Fluorescent Sensor. Anal Chem 2017; 89:2181-2185. [DOI: 10.1021/acs.analchem.6b04709] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yuehua Hu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Fan Lin
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Tao Wu
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Yufeng Zhou
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Qiusha Li
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Yong Shao
- Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, Zhejiang, China
| | - Zhiai Xu
- School
of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
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72
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Zhang Y, Zhang D, Zhang Y, Liu L, Zhang X, Zhang L, Zhang Y, Chang L, Fan Q, Zhang Y, Xi J, Zhang Q. Improving solubility and avoiding hygroscopicity of tetrahydroberberine by forming hydrochloride salts by introducing solvents: [HTHB]Cl, [HTHB]Cl·CH3OH and [HTHB]Cl·CH3COOH. NEW J CHEM 2017. [DOI: 10.1039/c7nj02423a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Improving the solubility of tetrahydroberberine by forming hydrochloride salts and avoiding the hygroscopicity.
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Affiliation(s)
- Yunan Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Dajun Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Yu Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Lixin Liu
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Xuesong Zhang
- First Affiliated Hospital
- Jiamusi University
- Jiamusi
- China
| | - Lei Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Yunjie Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Liang Chang
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | | | | | - Jiaming Xi
- College of Pharmacy
- Jiamusi University
- Jiamusi
- China
| | - Qiang Zhang
- School of Public Health
- Jiamusi University
- Jiamusi
- China
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73
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Ametovski J, Dutta U, Burchill L, Maiti D, Lupton DW, Hooper JF. Phosphine catalysed (5 + 1) annulation of ynone/cinnamates with primary amines. Chem Commun (Camb) 2017; 53:13071-13074. [DOI: 10.1039/c7cc08252e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The (5 + 1) annulation of ynone/cinnamates with protected primary amines gives rise to various heterocycles in good to excellent yields under phosphine catalysis.
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Affiliation(s)
- Jhi Ametovski
- School of Chemistry
- Monash University
- Clayton
- Melbourne
- Australia
| | - Uttam Dutta
- School of Chemistry
- Monash University
- Clayton
- Melbourne
- Australia
| | - Laura Burchill
- School of Chemistry
- Monash University
- Clayton
- Melbourne
- Australia
| | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai-400 076
- India
| | - David W. Lupton
- School of Chemistry
- Monash University
- Clayton
- Melbourne
- Australia
| | - Joel F. Hooper
- School of Chemistry
- Monash University
- Clayton
- Melbourne
- Australia
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74
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Wangchuk P, Sastraruji T, Taweechotipatr M, Keller PA, Pyne SG. Anti-inflammatory, Anti-bacterial and Anti-acetylcholinesterase Activities of two Isoquinoline Alkaloids–Scoulerine and Cheilanthifoline. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601101207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Corydalis plants containing isoquinoline alkaloids are reported to possess promising pharmacological properties for the treatment of important diseases including cancer, inflammation, Alzheimer's disease and microbial infections. As part of a wider program investigating Bhutanese medicinal plants, we have previously identified eight isoquinoline alkaloids from C. dubia. Out of these, we report here on two of the major alkaloids, scoulerine (1) and cheilanthifoline (2) and their inhibitory activities against acetylcholinesterase (anti-AChE), tumor necrosis factor alpha (anti TNF-α) and a bacterial strain, Helicobacter pylori. Both alkaloids showed weak anti TNF-α and antibacterial activities. However, the anti-AChE activity of scoulerine (1) was promising as it significantly inhibited AChE with a minimum inhibitory requirement (MIR) value of 0.0015 nmol, which was two-fold better than the reference drug, galanthamine (MIR value of 0.003 nmol). As there are limited anti-Alzheimer's chemotherapeutics, scoulerine (1) is worthy of further exploration, including lead optimization, structure-activity-relationship studies, analog development, pharmacodynamics and in vivo animal studies
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Affiliation(s)
- Phurpa Wangchuk
- Center for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
- School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Thanapat Sastraruji
- Center of Excellence in Oral and Maxillofacial Biology, Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Thailand
| | - Malai Taweechotipatr
- Department of Microbiology, Faculty of Medicine, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand
| | - Paul A Keller
- School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Stephen G Pyne
- School of Chemistry, University of Wollongong, Wollongong, NSW, 2522, Australia
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75
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Ebrahimi SN, Bagheri-Zomorrodi Z, Shakeri A, Iranshahy M, Masullo M, Piacente S, Iranshahi M. The Absolute Configuration and Cytotoxic Properties of Roehybridine β-N-oxide. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601101210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Roehybridine β- N-oxide (RNO) is a proaporphine-tryptamine dimer alkaloid from Roemeria hybrida. RNO possesses five stereogenic centers and so far its absolute configuration has not been determined. In this study, the absolute configuration of RNO was established as 6a S,7a R,6 R,9 S,10 R by comparing experimental and TDDFT calculated electronic circular dichroism (ECD) spectra. In addition, we have reported an amendment indicating exact 1H and 13C chemical shifts of RNO. RNO exhibited cytotoxic activity when tested in vitro against prostate cancer cell lines including PC3 and DU145. The IC50 values of RNO against PC3 and DU145 were 13.3 and 15.1 μg/mL, respectively.
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Affiliation(s)
- Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
| | - Zahra Bagheri-Zomorrodi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Milad Iranshahy
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Milena Masullo
- Dipartimento di Farmacia, Universita’ degli Studi di Salerno, Via Giovanni Paolo II, 84084, Salerno, Italy
| | - Sonia Piacente
- Dipartimento di Farmacia, Universita’ degli Studi di Salerno, Via Giovanni Paolo II, 84084, Salerno, Italy
| | - Mehrdad Iranshahi
- Biotechnology Research Center and School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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76
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Wei X, Shen H, Wang L, Meng Q, Liu W. Analyses of Total Alkaloid Extract of Corydalis yanhusuo by Comprehensive RP × RP Liquid Chromatography with pH Difference. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2016; 2016:9752735. [PMID: 27722008 PMCID: PMC5046096 DOI: 10.1155/2016/9752735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/13/2016] [Accepted: 08/16/2016] [Indexed: 05/04/2023]
Abstract
A comprehensive two-dimensional (2D) reverse phase (RP) liquid chromatography (LC) method is developed for alkaloid analysis. This offline comprehensive 2D method is developed using different pH values. With a pH value of 10.5, most alkaloids appear in the form of neutral molecules possessing high retention factors based on their polarity, while the alkaloid polarity order is changed when the pH value decreased to 3.0. The performance of pH modulated 2D LC is demonstrated with 8 alkaloid standards which resulted in orthogonal separation. The developed method is then applied to total alkaloid separation in Corydalis yanhusuo. The first-dimension separation is carried out using methanol and water containing 1.0% ammonium hydroxide and a strong base-resistant RP column, which afforded a peak capacity of 94. The second-dimension analysis is carried out with a surface positive charge column providing a peak capacity of 205 using a mobile phase consisting of acetonitrile and water with 0.15% formic acid. 2D analyses of total alkaloid extract from C. yanhusuo afford a total peak capacity of 9090. Sixteen compounds were tentatively identified based on their ultraviolet spectrum and MS/MS analyses. The proposed method provides an alternative approach to achieve high peak capacity for analysis of alkaloid extract.
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Affiliation(s)
- Xiaodong Wei
- College of Life Science, Tarim University, Alar, Xinjiang 843300, China
| | - Hongling Shen
- College of Life Science, Tarim University, Alar, Xinjiang 843300, China
| | - Lijun Wang
- College of Life Science, Tarim University, Alar, Xinjiang 843300, China
| | - Qingyan Meng
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China
| | - Wenjie Liu
- College of Life Science, Tarim University, Alar, Xinjiang 843300, China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China
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77
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78
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Chu H, Xue P, Yu JT, Cheng J. Rhodium-Catalyzed Annulation of Primary Benzylamine with α-Diazo Ketone toward Isoquinoline. J Org Chem 2016; 81:8009-13. [DOI: 10.1021/acs.joc.6b01378] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Haoke Chu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Peiran Xue
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiang Cheng
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
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79
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Antinociceptive effects of dehydrocorydaline in mouse models of inflammatory pain involve the opioid receptor and inflammatory cytokines. Sci Rep 2016; 6:27129. [PMID: 27272194 PMCID: PMC4895225 DOI: 10.1038/srep27129] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 05/16/2016] [Indexed: 11/09/2022] Open
Abstract
Dehydrocorydaline (DHC) is an alkaloidal component isolated from Rhizoma corydalis. Previous studies have shown that DHC has anti-inflammatory and anti-tumor effects and that it can protect the cardiovascular system. However, there are few studies of the antinociceptive effects of DHC in vivo. This study explored the antinociceptive effects and possible mechanisms of DHC in mice using two inflammatory pain models: the acetic acid-induced writhing test and the formalin paw test. The intraperitoneal administration of DHC (3.6, 6 or 10 mg/kg) showed a dose-dependent antinociceptive effect in the acetic acid-induced writhing test and significantly attenuated the formalin-induced pain responses in mice. The antinociceptive effects of DHC were not associated with changes in the locomotor activity or motor responses of animals, and no obvious acute or chronic toxic effects were observed in the mice. Furthermore, the use of naloxone confirmed the involvement of the opioid receptor in the central antinociceptive effects of DHC. DHC reduced formalin-induced paw edema, which indicated that DHC may produce an anti-inflammatory effect in the periphery. In the formalin test, DHC decreased the expression of caspase 6 (CASP6), TNF-α, IL-1β and IL-6 proteins in the spinal cord. These findings confirm that DHC has antinociceptive effects in mice.
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80
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Metal-free intermolecular formal cycloadditions enable an orthogonal access to nitrogen heterocycles. Nat Commun 2016; 7:10914. [PMID: 26975182 PMCID: PMC4796318 DOI: 10.1038/ncomms10914] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/28/2016] [Indexed: 01/04/2023] Open
Abstract
Nitrogen-containing heteroaromatic cores are ubiquitous building blocks in organic chemistry. Herein, we present a family of metal-free intermolecular formal cycloaddition reactions that enable highly selective and orthogonal access to isoquinolines and pyrimidines at will. Applications of the products are complemented by a density functional theory mechanistic analysis that pinpoints the crucial factors responsible for the selectivity observed, including stoichiometry and the nature of the heteroalkyne.
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81
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Pan F, Shu C, Ye LW. Recent progress towards gold-catalyzed synthesis of N-containing tricyclic compounds based on ynamides. Org Biomol Chem 2016; 14:9456-9465. [DOI: 10.1039/c6ob01774f] [Citation(s) in RCA: 221] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The recent advances in the gold-catalyzed construction of N-containing tricycles based on ynamides are reviewed by highlighting their specificity and applicability, and the mechanistic rationale.
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Affiliation(s)
- Fei Pan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- China
| | - Chao Shu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- China
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82
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Pan Y, Chen GW, Shen CH, He W, Ye LW. Synthesis of fused isoquinolines via gold-catalyzed tandem alkyne amination/intramolecular O–H insertion. Org Chem Front 2016. [DOI: 10.1039/c6qo00033a] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A novel gold-catalyzed tandem alkyne amination/intramolecular O–H insertion has been developed. A variety of [1,4]oxazino[3,2-c]isoquinolines are readily accessed under mild reaction conditions by utilizing this strategy, thereby providing an efficient and practical route for the construction of synthetically useful fused isoquinolines.
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Affiliation(s)
- Yuan Pan
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Gui-Wei Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Cang-Hai Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Weimin He
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
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83
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Dereplication of antioxidant compounds in Bene ( Pistacia atlantica subsp. mutica ) hull using a multiplex approach of HPLC–DAD, LC–MS and 1 H NMR techniques. J Pharm Biomed Anal 2016; 117:352-62. [DOI: 10.1016/j.jpba.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 11/22/2022]
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84
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Liu L, Yu X, Wang Z, Sun J, Pan R, Yang C, Wu L. Simultaneous determination and pharmacokinetics of five alkaloids in rat plasma by ultra high performance liquid chromatography with tandem mass spectrometry after the oral administration of Corydalis bungeana
Turcz extract. J Sep Sci 2015; 39:296-305. [DOI: 10.1002/jssc.201500889] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/05/2015] [Accepted: 10/21/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Lu Liu
- College of Pharmacy; Harbin Medical University; Harbin China
| | - Xueli Yu
- College of Pharmacy; Harbin Medical University; Harbin China
| | - Zhibin Wang
- Key Laboratory of Chinese Materia Medica (Ministry of Education); Heilongjiang University of Chinese Medicine; Harbin China
| | - Jiahui Sun
- College of Pharmacy; Harbin Medical University; Harbin China
| | - Rong Pan
- College of Pharmacy; Harbin Medical University; Harbin China
| | - Chunjuan Yang
- College of Pharmacy; Harbin Medical University; Harbin China
| | - Lijun Wu
- College of Pharmacy; Harbin Medical University; Harbin China
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85
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Hagel JM, Morris JS, Lee EJ, Desgagné-Penix I, Bross CD, Chang L, Chen X, Farrow SC, Zhang Y, Soh J, Sensen CW, Facchini PJ. Transcriptome analysis of 20 taxonomically related benzylisoquinoline alkaloid-producing plants. BMC PLANT BIOLOGY 2015; 15:227. [PMID: 26384972 PMCID: PMC4575454 DOI: 10.1186/s12870-015-0596-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 08/15/2015] [Indexed: 05/18/2023]
Abstract
BACKGROUND Benzylisoquinoline alkaloids (BIAs) represent a diverse class of plant specialized metabolites sharing a common biosynthetic origin beginning with tyrosine. Many BIAs have potent pharmacological activities, and plants accumulating them boast long histories of use in traditional medicine and cultural practices. The decades-long focus on a select number of plant species as model systems has allowed near or full elucidation of major BIA pathways, including those of morphine, sanguinarine and berberine. However, this focus has created a dearth of knowledge surrounding non-model species, which also are known to accumulate a wide-range of BIAs but whose biosynthesis is thus far entirely unexplored. Further, these non-model species represent a rich source of catalyst diversity valuable to plant biochemists and emerging synthetic biology efforts. RESULTS In order to access the genetic diversity of non-model plants accumulating BIAs, we selected 20 species representing 4 families within the Ranunculales. RNA extracted from each species was processed for analysis by both 1) Roche GS-FLX Titanium and 2) Illumina GA/HiSeq platforms, generating a total of 40 deep-sequencing transcriptome libraries. De novo assembly, annotation and subsequent full-length coding sequence (CDS) predictions indicated greater success for most species using the Illumina-based platform. Assembled data for each transcriptome were deposited into an established web-based BLAST portal ( www.phytometasyn.ca) to allow public access. Homology-based mining of libraries using BIA-biosynthetic enzymes as queries yielded ~850 gene candidates potentially involved in alkaloid biosynthesis. Expression analysis of these candidates was performed using inter-library FPKM normalization methods. These expression data provide a basis for the rational selection of gene candidates, and suggest possible metabolic bottlenecks within BIA metabolism. Phylogenetic analysis was performed for each of 15 different enzyme/protein groupings, highlighting many novel genes with potential involvement in the formation of one or more alkaloid types, including morphinan, aporphine, and phthalideisoquinoline alkaloids. Transcriptome resources were used to design and execute a case study of candidate N-methyltransferases (NMTs) from Glaucium flavum, which revealed predicted and novel enzyme activities. CONCLUSIONS This study establishes an essential resource for the isolation and discovery of 1) functional homologues and 2) entirely novel catalysts within BIA metabolism. Functional analysis of G. flavum NMTs demonstrated the utility of this resource and underscored the importance of empirical determination of proposed enzymatic function. Publically accessible, fully annotated, BLAST-accessible transcriptomes were not previously available for most species included in this report, despite the rich repertoire of bioactive alkaloids found in these plants and their importance to traditional medicine. The results presented herein provide essential sequence information and inform experimental design for the continued elucidation of BIA metabolism.
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Affiliation(s)
- Jillian M Hagel
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Jeremy S Morris
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Eun-Jeong Lee
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Isabel Desgagné-Penix
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
- Current address: Département de Chimie, Biochimie et Physique, Université du Québec à Trois-Rivières, Trois-Rivières, QC, G9A 5H7, Canada.
| | - Crystal D Bross
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Limei Chang
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Xue Chen
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Scott C Farrow
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Ye Zhang
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, T2N 4N1, Canada.
| | - Jung Soh
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, T2N 4N1, Canada.
| | - Christoph W Sensen
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, T2N 4N1, Canada.
- Current address: Institute of Molecular Biotechnology, Graz University of Technology, Graz, A-8010, Austria.
| | - Peter J Facchini
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
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86
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Hagel JM, Mandal R, Han B, Han J, Dinsmore DR, Borchers CH, Wishart DS, Facchini PJ. Metabolome analysis of 20 taxonomically related benzylisoquinoline alkaloid-producing plants. BMC PLANT BIOLOGY 2015; 15:220. [PMID: 26369413 PMCID: PMC4570626 DOI: 10.1186/s12870-015-0594-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 08/14/2015] [Indexed: 05/02/2023]
Abstract
BACKGROUND Recent progress toward the elucidation of benzylisoquinoline alkaloid (BIA) metabolism has focused on a small number of model plant species. Current understanding of BIA metabolism in plants such as opium poppy, which accumulates important pharmacological agents such as codeine and morphine, has relied on a combination of genomics and metabolomics to facilitate gene discovery. Metabolomics studies provide important insight into the primary biochemical networks underpinning specialized metabolism, and serve as a key resource for metabolic engineering, gene discovery, and elucidation of governing regulatory mechanisms. Beyond model plants, few broad-scope metabolomics reports are available for the vast number of plant species known to produce an estimated 2500 structurally diverse BIAs, many of which exhibit promising medicinal properties. RESULTS We applied a multi-platform approach incorporating four different analytical methods to examine 20 non-model, BIA-accumulating plant species. Plants representing four families in the Ranunculales were chosen based on reported BIA content, taxonomic distribution and importance in modern/traditional medicine. One-dimensional (1)H NMR-based profiling quantified 91 metabolites and revealed significant species- and tissue-specific variation in sugar, amino acid and organic acid content. Mono- and disaccharide sugars were generally lower in roots and rhizomes compared with stems, and a variety of metabolites distinguished callus tissue from intact plant organs. Direct flow infusion tandem mass spectrometry provided a broad survey of 110 lipid derivatives including phosphatidylcholines and acylcarnitines, and high-performance liquid chromatography coupled with UV detection quantified 15 phenolic compounds including flavonoids, benzoic acid derivatives and hydroxycinnamic acids. Ultra-performance liquid chromatography coupled with high-resolution Fourier transform mass spectrometry generated extensive mass lists for all species, which were mined for metabolites putatively corresponding to BIAs. Different alkaloids profiles, including both ubiquitous and potentially rare compounds, were observed. CONCLUSIONS Extensive metabolite profiling combining multiple analytical platforms enabled a more complete picture of overall metabolism occurring in selected plant species. This study represents the first time a metabolomics approach has been applied to most of these species, despite their importance in modern and traditional medicine. Coupled with genomics data, these metabolomics resources serve as a key resource for the investigation of BIA biosynthesis in non-model plant species.
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Affiliation(s)
- Jillian M Hagel
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1 N4, Canada.
| | - Rupasri Mandal
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Beomsoo Han
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Jun Han
- University of Victoria-Genome BC Proteomics Centre, University of Victoria, Victoria, BC, V8Z 7X8, Canada.
| | - Donald R Dinsmore
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1 N4, Canada.
| | - Christoph H Borchers
- University of Victoria-Genome BC Proteomics Centre, University of Victoria, Victoria, BC, V8Z 7X8, Canada.
| | - David S Wishart
- Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2E9, Canada.
| | - Peter J Facchini
- Department of Biological Sciences, University of Calgary, Calgary, AB, T2N 1 N4, Canada.
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87
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Synthesis of C3/C1-Substituted Tetrahydroisoquinolines. Molecules 2015; 20:14902-14. [PMID: 26287146 PMCID: PMC6332194 DOI: 10.3390/molecules200814902] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 08/05/2015] [Accepted: 08/10/2015] [Indexed: 01/18/2023] Open
Abstract
A broad biological screening of the natural alkaloid N-methylisosalsoline (2) extracted from Hammadascoparia leaves against a panel of human and parasitic proteases revealed an interesting activity profile of 2 towards human 20S proteasome. This outcome suggests that the 1,2,3,4-tetrahydroisoquinoline skeleton may be exploited as a template for the development of novel anticancer agents. In this article, we report the synthesis and chemical characterization of a new series of isosalsoline-type alkaloids (10–11) with variations at N2 and C3 positions with respect to the natural Compound 2, obtained by a synthetic strategy that involves the Bischler-Napieralski cyclization. The substrate for the condensation to the tetrahydroisoquinoline system, i.e., a functionalized β-arylethyl amine, was obtained through an original double reduction of nitroalkene. The synthetic strategy can be directed to the construction of highly substituted and functionalized 1,2,3,4-tetrahydroisoquinolines.
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88
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Isoquinoline alkaloids as prolyl oligopeptidase inhibitors. Fitoterapia 2015; 103:192-6. [DOI: 10.1016/j.fitote.2015.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 11/17/2022]
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89
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Ruiz S, Villuendas P, Ortuño MA, Lledós A, Urriolabeitia EP. Ruthenium-Catalyzed Oxidative Coupling of Primary Amines with Internal Alkynes through CH Bond Activation: Scope and Mechanistic Studies. Chemistry 2015; 21:8626-36. [DOI: 10.1002/chem.201500338] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Indexed: 12/11/2022]
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90
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Iranshahy M, Javidi-Shirazi H, Pham NB, Quinn RJ, Sadeghian H, Iranshahi M. Adlumiceine methyl ester, a new alkaloid from Fumaria vaillantii. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 16:1148-1152. [PMID: 25359679 DOI: 10.1080/10286020.2014.969717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 09/22/2014] [Indexed: 06/04/2023]
Abstract
A new alkaloid, adlumiceine methyl ester (1), together with two known alkaloids, parfumine (2) and N-methylhydrastine methyl ester (3), was isolated from aerial parts of Fumaria vaillantii. The structures of compounds were determined by 1D/2D NMR and MS data. All three compounds were tested for cytotoxic activity against PC3 and MCF7 cell lines using Alamar blue assay. The tested compounds showed no significant cytotoxic activity (IC50>50 μM) against PC3 and MCF7 cell lines.
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Affiliation(s)
- Milad Iranshahy
- a Biotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences , Mashhad , Iran
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91
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Abstract
Lauraceae is one of the most representative botanical families, presenting 67 genera, with over 2500 species and more than 300 different alkaloids reported, mainly isoquinolines.
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92
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Ghosh SK, Nagarajan R. Total synthesis of cruciferane via epoxidation/tandem cyclization sequence. RSC Adv 2014. [DOI: 10.1039/c4ra10309b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The total synthesis of alkaloid cruciferane is performed in three steps with an overall yield of 60.3%.
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Affiliation(s)
- Suman Kr Ghosh
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046, India
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