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Liu XY, Tong XN, Liang XM, Guo Q, Tu PF, Zhang QY. Triterpenoids from the hook-bearing stems of Uncaria rhynchophylla. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:747-755. [PMID: 38379373 DOI: 10.1080/10286020.2024.2313542] [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: 10/30/2023] [Accepted: 01/26/2024] [Indexed: 02/22/2024]
Abstract
An unprescribed nortriterpenoid with an aromatic E ring, uncanortriterpenoid A (1), together with fourteen known triterpenoids (2-15), were isolated from the hook-bearing stems of Uncaria rhynchophylla Miq. Based on extensive spectroscopic analyses, the NMR data of 2, 5, and 10 in CD3OD were assigned for the first time, and the wrongly assigned δC of C-27 and C-29 of 2 were revised. Among the known compounds, 7, 13, and 15 were isolated from this species for the first time, and 15 represents the first lanostane triterpenoid bearing an extra methylidene at C-24 for the Rubiaceae family. Additionally, compounds 6 and 14 exhibited moderate ferroptosis inhibitory activity, with an EC50 value of 14.74 ± 0.20 μM for 6 and 23.11 ± 1.31 μM for 14.
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Affiliation(s)
- Xin-Yu Liu
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Xin-Nuo Tong
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Xiao-Min Liang
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Qiang Guo
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Qing-Ying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
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Qin JX, Hong Y, Zhao LY, Wang CQ, Fang X, Liang S. The basic chemical substances of total alkaloids of Uncaria rhynchophylla and their anti-neuroinflammatory activities. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:765-771. [PMID: 38373226 DOI: 10.1080/10286020.2024.2315211] [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: 10/09/2023] [Accepted: 02/02/2024] [Indexed: 02/21/2024]
Abstract
To clarify the chemical basis of the total alkaloids of Uncaria rhynchophylla, HPLC-VWD chromatogram of total alkaloids was established. Under its guidance, modern chromatographic and spectroscopic techniques were used to track, isolate and identify the representative principal components. As a result, one new monoterpenoid indole alkaloid, 3S,15S-N4-methoxymethyl-geissoschizine methyl ether (1), together with 20 known alkaloids (2-21), and 5 other known compounds (22-26) were obtained. Meanwhile, sixteen characteristic peaks were identified from the total alkaloids using HPLC analysis. Then, the anti-neuroinflammatory effect of compounds 1-21 was assessed through inhibiting nitric ---oxide (NO) production in lipopolysaccharide (LPS)-induced BV-2 microglial cells. Among them, compounds 1, 3, 7, 8, 11, 12, 19 and 21 showed potent inhibitory activities with IC50 values of 5.87-76.78 μM.
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Affiliation(s)
- Jia-Xu Qin
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yang Hong
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lu-Yi Zhao
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chao-Qun Wang
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xin Fang
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shuang Liang
- Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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3
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Cao R, Wang Y, Zhou Y, Zhu J, Zhang K, Liu W, Feng F, Qu W. Advanced researches of traditional uses, phytochemistry, pharmacology, and toxicology of medical Uncariae Ramulus Cum Uncis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 325:117848. [PMID: 38336181 DOI: 10.1016/j.jep.2024.117848] [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: 07/17/2023] [Revised: 11/09/2023] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medical Uncariae Ramulus Cum Uncis consists of Uncaria rhynchophylla (Miq.) Miq. ex Havil, Uncaria macrophylla Wall, Uncaria sinensis (Oliv.) Havil, Uncaria hirsuta Havil, and Uncaria sessilifructus Roxb, which belongs to the species widely used in the genus Uncaria. These species resource widely distributed in China and abroad, and the hook-bearing stem is the primary constituent enrichment site. There are many different forms and architectures of chemicals, depending on the extraction site. Traditional remedies employing URCU had been used widely in antiquity and were first compiled in renowned ancient masterpiece 'Mingyi Bielu ()' written by Hongjing Tao. In modern pharmacological studies, both the total extracts and the phytoconstituents isolated from URCU have been shown to have neuroprotective, antioxidant, anti-inflammatory, anticancer, antibacterial, and autophagy-enhancer properties. AIM OF THE STUDY This review concentrates on the traditional uses, phytochemistry, pharmacology, toxicology, and nanomaterials studies of URCU, with a perspective to assist with further research and advance. MATERIAL AND METHODS The Chinese and English literature studies of this review are based on these database searches including Science Direct, CNKI, Wiley online library, Spring Link, Web of Science, PubMed, Medalink, Google scholar, Elsevier, ACS Publications, iPlant, Missouri Botanical Garden, Plant of the World Online. The pertinent data on URCU was gathered. RESULTS Based on the examination of the genus Uncaria, 107 newly marked chemical compositions have been identified from URCU from 2015 to present, including alkaloids, terpenoids, flavonoids, steroids, and others. Pharmacological studies have demonstrated that URCU has a variety of benefits in diseases such as neurodegenerative diseases, cancer, cardiovascular diseases, diabetes, and migraine, due to its neuroprotective, anti-inflammatory, antioxidant, anti-tumor, anti-bacterial and anti-viral properties. According to metabolic and toxicological studies, the dosage, frequency, and interactions of the drugs that occur in vivo are of great significance for determining whether the organic bodies can perform efficacy or produce toxicity. The research on URCU-mediated nanomaterials is expanding and increasing in order to address the inadequacies of conventional Chinese medicine. The alkaloids in URCU have the capability to self-assemble with other classes of components in addition to being biologically active. CONCLUSION URCU plants are widely distributed, abundant in chemical constituents, and widely used in both traditional and modern medicine for a variety of pharmacological effects. The utilization of herbal medicines can be raised by assessing the pharmacological distinctions among several species within the same genus and may accelerate the modernization of traditional Chinese medicine. Controlling the concentration of drug administration, monitoring metabolic markers, and inventing novel nanotechnologies are effective strategies for synergistic influence and detoxification to alleviate the main obstacles that toxicity, low bioavailability, and poor permeability. This review can assist further research and advances.
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Affiliation(s)
- Ruolian Cao
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Yuanyuan Wang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Ya Zhou
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Jiaxin Zhu
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Kexin Zhang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China
| | - Wenyuan Liu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, 210009, China
| | - Feng Feng
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Nanjing Medical University, Nanjing, 211198, China
| | - Wei Qu
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China.
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Zhang Q, Lei XQ, Wei FT, Ren JQ, Shi JG, Guo QL. Minor alkaloids from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:4-17. [PMID: 37888783 DOI: 10.1080/10286020.2023.2273807] [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: 09/18/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023]
Abstract
Seven new monoterpene alkaloids (1 - 7), along with 16 known analogues, were isolated from an aqueous decoction of the hook-bearing stems of Uncaria rhynchophylla (Gou-teng). Their structures were determined by spectroscopic data analysis, single crystal X-ray diffraction, and electronic circular dichroism (ECD) calculations. Compounds 1 and 2 are stereoisomers belonging to a novel type of pseudoindoxyl monoterpene alkaloids, 3 is the first monoterpene furoindole alkaloid from nature, and 4 - 7 are derivatives of the known monoterpene alkaloids featuring different structures.
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Affiliation(s)
- Qing Zhang
- 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 100050, China
| | - Xiao-Qiang Lei
- 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 100050, China
| | - Fang-Ting Wei
- 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 100050, China
| | - Jin-Qiu 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 100050, China
| | - Jian-Gong Shi
- 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 100050, China
| | - Qing-Lan Guo
- 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 100050, China
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5
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Traxler F, Zhang H, Mahavorasirikul W, Krivanek K, Cai XH, Aiyakool W, Pfeiffer M, Brecker L, Schinnerl J. Two Novel Iboga-Type and an Oxindole Glucuronide Alkaloid from Tabernaemontana peduncularis Disclose Related Biosynthetic Pathways to Tabernaemontana divaricata. Molecules 2023; 28:6664. [PMID: 37764440 PMCID: PMC10535570 DOI: 10.3390/molecules28186664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Phytochemical investigation of the two Tabernaemontana species (Apocynaceae) T. peduncularis Wall. and T. divaricata (L.) R.Br. ex Roem. & Schult. indicated closely related biosynthetic pathways leading to lipophilic and hydrophilic alkaloids. In total, 18 specialized metabolites comprising indole-derived alkaloid aglycones, three oxindole-derived alkaloid glycosides, and two iridoid glucosides could be identified in the studied species. Among the alkaloids, the two Iboga-type alkaloids 3,7-coronaridine isoindolenine, coronaridine 3,4-iminium and a javaniside derivative bearing a glucuronic acid, named javanuronic acid, could be described by spectroscopic and spectrometric methods for the first time. A docking experiment using alpha-fold was performed to generate a protein model of the enzyme 7-deoxyloganetic acid glucosyl transferase. Performed bioassays exhibited a growth reduction of neonate Spodoptera littoralis larvae and reduced cell viability of HepG2 cells of the extracts containing Iboga alkaloids, whilst the javaniside derivatives containing hydrophilic fraction did not show any effects. These findings indicate a high flexibility in the formation of bioactive indole alkaloid aglycones by Tabernaemontana species and also evidence similar accumulation trends in both species as well as indicate that biosynthetic routes leading to oxindole alkaloids like javanisides are more widespread than reported. Furthermore, the incorporation of the three novel compounds into potential biosynthetic pathways is discussed.
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Affiliation(s)
- Florian Traxler
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Haoqi Zhang
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Wiratchanee Mahavorasirikul
- Drug Discovery and Development Center, Advanced Science and Technologies, Thammasat University (Rangsit Campus), Pathumthani 12121, Thailand;
- Thammasat University Research Unit in Cannabis and Herbal Products Innovation, Thammasat University (Rangsit Campus), Pathumthani 12121, Thailand
| | - Katharina Krivanek
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
| | - Xiang-Hai Cai
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Wichai Aiyakool
- Department of Botany, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand;
- Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand
| | - Martin Pfeiffer
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, A-8010 Graz, Austria;
| | - Lothar Brecker
- Department of Organic Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria; (F.T.); (K.K.)
| | - Johann Schinnerl
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, A-1030 Vienna, Austria
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6
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Li J, Li JX, Jiang H, Li M, Chen L, Wang YY, Wang L, Zhang N, Guo HZ, Ma KL. Phytochemistry and biological activities of corynanthe alkaloids. PHYTOCHEMISTRY 2023:113786. [PMID: 37422009 DOI: 10.1016/j.phytochem.2023.113786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/10/2023]
Abstract
Medicinal plants constitute a source for designing clinically useful drugs targeting diseases through various mechanisms. Plant secondary metabolites can be used as lead compounds of drugs. Corynanthe alkaloids are highly abundant natural bioactive substances of various core structures possessing important properties such as nerve excitation and antimalarial and analgesic effects. In this review, we summarize and review the state-of-the-art corynanthe-type alkaloid research focusing on phytochemistry, pharmacology, and structural chemistry. Approximately 120 articles reporting 231 alkaloids classified into simple corynanthe, yohimbine, oxindole corynanthe, mavacurane, sarpagine, akuammiline, strychnos, and ajmaline-type groups were compiled. Relevant biological properties discussed include antiviral, antibacterial, anti-inflammatory, antimalarial, muscle-relaxant, vasorelaxant, and analgesic activities and activities affecting the main nervous and cardiac systems, as well as NF-κB inhibitory and Na+-glucose cotransporter inhibitory properties. This review provides insights and a reference for future studies, thus paving the way for the discovery of drugs based on corynanthe alkaloids.
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Affiliation(s)
- Jun Li
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Jia-Xing Li
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Hua Jiang
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Min Li
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Lin Chen
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Yue-Yue Wang
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Lu Wang
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Ning Zhang
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - He-Zhe Guo
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Kai-Long Ma
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
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7
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Zhou HF, Li WY, Wu Q, Ren J, Peng LY, Li XN, Zhao QS. Discovery and Biomimetic Semisynthesis of Spirophyllines A-D from Uncaria rhynchophylla. Org Lett 2023; 25:4434-4438. [PMID: 37288843 DOI: 10.1021/acs.orglett.3c01342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Spirophyllines A-D (1-4), four new spirooxindole alkaloids all characterized by the spiro[pyrrolidin-3,3'-oxindole] core and a rare isoxazolidine ring, were isolated from Uncaria rhynchophylla. Their structures were determined by spectroscopic methods and confirmed by X-ray crystallography. Based on the biomimetic semisynthesis strategy, compounds 1-8 were synthesized in three steps via the key reactions of 1,3-dipolar cycloaddition and Krapcho decarboxylation from corynoxeine. Interestingly, compound 3 showed moderate inhibitory activity against the Kv1.5 potassium channel (IC50 = 9.1 μM).
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Affiliation(s)
- Hao-Feng Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wen-Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
| | - Qi Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jian Ren
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
| | - Li-Yan Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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8
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Huang KP, Xu LL, Li S, Wei YL, Yang L, Hao XJ, He HP, Zhang Y. Uncarialines A-E, new alkaloids from Uncaria rhynchophylla and their anticoagulant activity. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:13. [PMID: 37043142 PMCID: PMC10097851 DOI: 10.1007/s13659-023-00377-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/03/2023] [Indexed: 05/13/2023]
Abstract
Uncarialines A-E (1-5), five undescribed monoterpene indole alkaloids, together with five known analogues were obtained from the stems of Uncaria rhynchophylla. Alkaloids 1-3 were unique 3,4-seco-tricyclic alkaloids with a 6/5/10 ring system, while 4 and 5 possessed a rare rearranged scaffold originated from corynantheine-type alkaloids with C-2/C-7 oxidation. Their structures were characterized by a comprehensive analysis of MS, NMR, and ECD. Their effects on blood clotting times of human plasma were evaluated and alkaloid 5 had a slight prolongation effect on both thrombin time and activated partial thromboplastin time (p < 0.001).
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Affiliation(s)
- Ke-Pu Huang
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, People's Republic of China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Li-Li Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Sheng Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Yin-Ling Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Lian Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Xiao-Jiang Hao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Hong-Ping He
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, People's Republic of China.
| | - Yu Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
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9
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Liang X, Wei Y, Hou X, Guo Q, Liang H, Zeng K, Tu P, Zhang Q. Triterpenoids from Uncaria macrophylla as ferroptosis inhibitors. PHYTOCHEMISTRY 2023; 206:113530. [PMID: 36455653 DOI: 10.1016/j.phytochem.2022.113530] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Seven undescribed triterpenoids were obtained from the ethanol extract of the dried stems of Uncaria macrophylla Wall. (Rubiaceae).All of the isolates were urs-28-oic acid or olean-28-oic acid skeletons, including three triterpenoids with rare 3β,23-(1R-4-hydroxy-butyl-1,1-dioxy) or 23-(2R-tetrahydrofuran-2-oxy) substituents. Five triterpenoids showed promising inhibitory activity against erastin-induced ferroptosis in PC12 cells, while 3β,6α,23-trihydroxy-olean-12-en-28-oic acid was the most significant inhibitor to resist ferroptosis by activating the Nrf2/SLC7A11/GPx4 axis with an EC50 value of 4.2 ± 0.7 μM.
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Affiliation(s)
- Xiaomin Liang
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Yuding Wei
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Xingzi Hou
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Qiang Guo
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Hong Liang
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Kewu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Qingying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China.
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10
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Zhang ZL, Li YZ, Wu GQ, Li YM, Zhang DD, Wang R. A comprehensive review of phytochemistry, pharmacology and clinical applications of Uncariae Ramulus Cum Uncis. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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11
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Enantiomeric Phenylpropanoids from Uncaria rhynchophylla. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03860-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Umer SM, Solangi M, Khan KM, Saleem RSZ. Indole-Containing Natural Products 2019-2022: Isolations, Reappraisals, Syntheses, and Biological Activities. Molecules 2022; 27:7586. [PMID: 36364413 PMCID: PMC9655573 DOI: 10.3390/molecules27217586] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 07/30/2023] Open
Abstract
Indole alkaloids represent a large subset of natural products, with more than 4100 known compounds. The majority of these alkaloids are biologically active, with some exhibiting excellent antitumor, antibacterial, antiviral, antifungal, and antiplasmodial activities. Consequently, the natural products of this class have attracted considerable attention as potential leads for novel therapeutics and are routinely isolated, characterized, and profiled to gauge their biological potential. However, data on indole alkaloids, their various structures, and bioactivities are complex due to their diverse sources, such as plants, fungi, bacteria, sponges, tunicates, and bryozoans; thus, isolation methods produce an incredible trove of information. The situation is exacerbated when synthetic derivatives, as well as their structures, bioactivities, and synthetic schemes, are considered. Thus, to make such data comprehensive and inform researchers about the current field's state, this review summarizes recent reports on novel indole alkaloids. It deals with the isolation and characterization of 250 novel indole alkaloids, a reappraisal of previously reported compounds, and total syntheses of indole alkaloids. In addition, several syntheses and semi-syntheses of indole-containing derivatives and their bioactivities are reported between January 2019 and July 2022.
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Affiliation(s)
- Syed Muhammad Umer
- Department of Chemistry and Chemical Engineering, SBASSE, Lahore University of Management Sciences, Sector-U, DHA, Lahore 54792, Pakistan
| | - Mehwish Solangi
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 31441, Dammam 31441, Saudi Arabia
| | - Rahman Shah Zaib Saleem
- Department of Chemistry and Chemical Engineering, SBASSE, Lahore University of Management Sciences, Sector-U, DHA, Lahore 54792, Pakistan
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13
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Pan QM, Li YH, Zhang JJ, Li Y, Ma SG, Yu SS. Monoterpenoid indole alkaloids isolated from the stems and twigs of Strychnos cathayensis. PHYTOCHEMISTRY 2022; 203:113353. [PMID: 36007664 DOI: 10.1016/j.phytochem.2022.113353] [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: 03/13/2022] [Revised: 06/15/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Seven undescribed monoterpenoid indole alkaloids, two N(4)-chloromethylation artifacts, and 10 known alkaloids were isolated from the stems and twigs of Strychnos cathayensis. The corresponding structures were elucidated via spectroscopic data interpretation and electronic circular dichroism. The absolute configuration of (17S)-12-hydroxy-11-methoxydiaboline, the major anomer of 12-hydroxy-11-methoxydiaboline, was characterized by X-ray diffraction analysis for the first time. At an intraperitoneal dose of 30 mg/kg, 12-hydroxy-11-methoxy-N(4)-chloromethyldiaboline and (-)-macusine A exhibited potential analgesic effects with prolongation rates of 99% and 47% for the latency time of hind-paw licking, respectively, compared to the blank control. 12-Hydroxy-11-methoxydiaboline, 12-hydroxy-11-methoxydiaboline N(4)-oxide, retuline N-oxide, and (-)-vincosamide exhibited antiviral activity against Coxsackie virus B3 (CVB3) with IC50 values of 33.33 μM.
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Affiliation(s)
- Qi-Ming Pan
- 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, 100050, People's Republic of China
| | - Yu-Huan Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, People's Republic of China
| | - Jian-Jun Zhang
- 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, 100050, People's Republic of China
| | - Yong Li
- 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, 100050, People's Republic of China
| | - Shuang-Gang 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, 100050, People's Republic of China.
| | - Shi-Shan 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, 100050, People's Republic of China.
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14
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Uncariphyllin A-J, indole alkaloids from Uncaria rhynchophylla as antagonists of dopamine D2 and Mu opioid receptors. Bioorg Chem 2022; 130:106257. [DOI: 10.1016/j.bioorg.2022.106257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/20/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
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15
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Characterization and Comparative Analysis of Chloroplast Genomes in Five Uncaria Species Endemic to China. Int J Mol Sci 2022; 23:ijms231911617. [PMID: 36232915 PMCID: PMC9569570 DOI: 10.3390/ijms231911617] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/22/2022] [Accepted: 09/27/2022] [Indexed: 11/09/2022] Open
Abstract
Uncaria, a perennial vine from the Rubiaceae family, is a typical Chinese traditional medicine. Currently, uncertainty exists over the Uncaria genus’ evolutionary relationships and germplasm identification. The complete chloroplast genomes of four Uncaria species mentioned in the Chinese Pharmacopoeia and Uncaria scandens (an easily confused counterfeit) were sequenced and annotated. The findings demonstrated that the whole chloroplast genome of Uncaria genus is 153,780–155,138 bp in full length, encoding a total of 128–131 genes, containing 83–86 protein-coding genes, eight rRNAs and 37 tRNAs. These regions, which include eleven highly variable loci and 31–49 SSRs, can be used to create significant molecular markers for the Uncaria genus. The phylogenetic tree was constructed according to protein-coding genes and the whole chloroplast genome sequences of five Uncaria species using four methods. The topology of the two phylogenetic trees showed no difference. The sequences of U. rhynchophylla and U. scandens are clustered in one group, while the U. hirsuta and U. macrophylla are clustered in another group. U. sessilifructus is clustered together with the above two small clades. New insights on the relationship were revealed via phylogenetic research in five Uncaria species. This study will provide a theoretical basis for identifying U. rhynchophylla and its counterfeits, as well as the species of the Uncaria genus. This research provides the initial chloroplast genome report of Uncaria, contributes to elucidating the chloroplast genome evolution of Uncaria in China.
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16
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Dong H, Zhang Y, Wai Ming T, Wang S, Li J, Fu S, Zhang Q, Zeng K, Tu P, Liang H. Cirrhosinones A-H, 24-hydroxy cevanine-type alkaloids from Fritillariacirrhosa. PHYTOCHEMISTRY 2022; 197:113129. [PMID: 35176308 DOI: 10.1016/j.phytochem.2022.113129] [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: 08/30/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Eight undescribed isosteroidal alkaloids cirrhosinones A-H (1-8), along with six known isosteroidal alkaloids (9-14), were isolated from the bulbs of Fritillaria cirrhosa D. Don. Their structures were determined by HRESIMS and 2D NMR analysis, and their absolute configurations were established by X-ray analysis. Compounds 1-8 possessed a typical cevanine-type alkaloid skeleton with a hydroxyl group rarely substituted at C-24 and compounds 4-8 possessed rare 7α or 7β-hydroxyl groups. This was the first report of both C-7 and C-24 hydroxyl groups substituted cevanine-type alkaloids. In addition, an approach for distinguishing D/E cis and trans conformations of cevanine-type alkaloids by 1H NMR data was developed. Moreover, the correlations between the relative configurations of 3-OH, 7-OH, 22-C, 24-OH, and 25-Me and the 1H NMR and 13C NMR data were also summarized. Compounds 1-9 exhibited moderate NO inhibitory activities in LPS-stimulated BV-2 cells at the concentration of 40 μM. The acetylcholinesterase inhibitory activities of compounds 1-7 and 9-10 were also evaluated and none of them showed acetylcholinesterase inhibitory activities at the concentrations of 20-80 μM.
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Affiliation(s)
- Huiwen Dong
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Yunhu Zhang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Tse Wai Ming
- Nin Jiom Medicine Manufactory (H.K.) Limited, Hong Kong, 999077, People's Republic of China
| | - Shuhui Wang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Jiawei Li
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Shaobing Fu
- Nin Jiom Medicine Manufactory (H.K.) Limited, Hong Kong, 999077, People's Republic of China
| | - Qingying Zhang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Kewu Zeng
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Pengfei Tu
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China.
| | - Hong Liang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, People's Republic of China.
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17
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Song LL, Wang Y, Xu CB, Lei XQ, Guo QL, Shi JG. Minor monoterpene derivatives from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:432-444. [PMID: 35435775 DOI: 10.1080/10286020.2022.2061961] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Seven new minor monoterpene derivatives (1-7), together with six known analogues, were isolated from an aqueous decoction of the hook-bearing stems of Uncaria rhynchophylla (Gou-teng). Their structures were determined by spectroscopic data analysis and electronic circular dichroism (ECD) calculations, of which 1 was confirmed by single crystal X-ray diffraction.
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Affiliation(s)
- Le-Ling Song
- 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 100050, China
| | - Yue Wang
- 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 100050, China
| | - Cheng-Bo 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 100050, China
| | - Xiao-Qiang Lei
- 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 100050, China
| | - Qing-Lan Guo
- 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 100050, China
| | - Jian-Gong Shi
- 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 100050, China
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18
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Zhang W, Liu B, Wang G, Yu X, Zhu L, Liang Y, Zhou M. A New Monoterpenoid Indole Alkaloid from Uncaria rhynchophylla. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Zhou HF, Li WY, Peng LY, Li XN, Zuo ZL, Zhao QS. Rhynchines A-E: Ca v3.1 Calcium Channel Blockers from Uncaria rhynchophylla. Org Lett 2021; 23:9463-9467. [PMID: 34818888 DOI: 10.1021/acs.orglett.1c03641] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rhynchines A-E (1-5), five new indole alkaloids with an unprecedented skeleton, were isolated from Uncaria rhynchophylla. The new skeleton was characterized by an indole moiety and a 2-oxa-8-azatricyclo[6,5,01,5,01,8]tridecane core, forming a unique 6/5/7/5/5 ring system. Their structures were determined by nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry, infrared spectroscopy, and calculated electronic circular dichroism (ECD) and were confirmed by X-ray crystallography. Interestingly, 1 and 2 showed strong inhibitory activities against the Cav3.1 calcium channel with IC50 values of 6.86 and 10.41 μM.
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Affiliation(s)
- Hao-Feng Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wen-Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Li-Yan Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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20
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Qiu Y, Yang X, Xu J, Liu B, Li X. Benzofuran ε-caprolactam glucosides, amides and phenylpropanoid derivatives with anti-inflammatory activity from Oxybaphus himalaicus. PHYTOCHEMISTRY 2021; 191:112905. [PMID: 34392008 DOI: 10.1016/j.phytochem.2021.112905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/31/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
(+)-(2S,3S)- and (-)-(2R,3R)-Oxybaphuslactam A glucosides are two undescribed benzofuran ε-caprolactams featuring a unique 7/6/5 fused tricyclic framework with p-glucosyl-O-phenyl unit. They were isolated from the root of Tibetan medicinal plant Oxybaphus himalaicus along with an undescribed sucrose ester, 3-O-feruloyl sucrose, an undescribed lignan glucoside, (7'R,8R,8'S)-3,3',5,5'-tetramethoxy-7',9-epoxylignan-9'-ol-7-one 4,4'-di-O-β-D-glucopyranoside and ten known amides and phenylpropanoid derivatives. Based on the spectral analyses, X-ray crystallography and comparison of experimental and TD-DFT calculated ECD spectra, the structures of these compounds were determined. The anti-inflammatory assay showed the undescribed compounds had significant inhibitory effects on the formation of NO, TNF-α and IL-6, which were evaluated by LPS induced RAW 264.7 cell model.
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Affiliation(s)
- Yan Qiu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Xuedong Yang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China.
| | - Jun Xu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Bo Liu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
| | - Xiaoxue Li
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
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21
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Li RF, Zhu CG, Xu CB, Guo QL, Shi JG. Minor alkaloids from an aqueous extract of the hook-bearing stem of Uncaria rhynchophylla. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:513-526. [PMID: 33794715 DOI: 10.1080/10286020.2021.1906658] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Seven new monoterpene alkaloids (1-7), along with 18 known analogues, were isolated from an aqueous decoction of the hook-bearing stems of Uncaria rhynchophylla (Gou-teng). Their structures were determined by spectroscopic data analysis and electronic circular dichroism (ECD) calculations. Compound 1 is the first monoterpene 22-norindoloquinolizidine alkaloid with a ketene unit, while 2 and 3 are unusual indoloquinolizidine alkaloids having an oxazinane ring.[Formula: see text].
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Affiliation(s)
- Ruo-Fei Li
- 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 100050, China
| | - Cheng-Gen Zhu
- 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 100050, China
| | - Cheng-Bo 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 100050, China
| | - Qing-Lan Guo
- 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 100050, China
| | - Jian-Gong Shi
- 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 100050, China
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22
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Qureshi AK, Liew SY, Othman NA, Awang K. Phytochemical constituents from Neolamarckia cadamba (Roxb.) Bosser. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Tuzimski T, Petruczynik A. Application of HPLC-DAD for In Vitro Investigation of Acetylcholinesterase Inhibition Activity of Selected Isoquinoline Alkaloids from Sanguinaria canadensis Extracts. Molecules 2021; 26:molecules26010230. [PMID: 33466254 PMCID: PMC7796366 DOI: 10.3390/molecules26010230] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 12/30/2020] [Accepted: 01/01/2021] [Indexed: 12/17/2022] Open
Abstract
Isoquinoline alkaloids may have a wide range of pharmacological activities. Some of them have acetylcholinesterase activity inhibition. Nowadays, neurodegenerative disorders such as Alzheimer’s disease have become a serious public health problem. Searching for new effective compounds with inhibited acetylcholinesterase activity is one of the most significant challenges of modern scientific research. The aim of this study was the in vitro investigation of acetylcholinesterase activity inhibition of extracts obtained from Sanguinaria canadensis collected before, during and after flowering. The acetylcholinesterase activity inhibition of these extracts has not been previously tested. The aim was also to quantify selected alkaloids in the investigated extracts by high performance liquid chromatography (HPLC). The analyses of alkaloid content were performed using HPLC in reversed phase (RP) mode using Polar RP column and mobile phase containing acetonitrile, water and ionic liquid (IL). The acetylcholinesterase activity inhibition of the tested plant extracts and respective alkaloid standards were examined using high performance liquid chromatography with diode-array detector (HPLC-DAD) for the quantification of 5-thio-2-nitro-benzoic acid, which is the product of the reaction between the thiocholine (product of the hydrolysis of acetylthiocholine reaction) with Ellman reagent. The application of the HPLC method allowed for elimination of absorption of interfering components, for example, alkaloids such as sanguinarine and berberine. It is revealed that the HPLC method can be successfully used for the evaluation of the acetylcholinesterase inhibitory activity in samples such as plant extracts, especially those containing colored components adsorbing at wavelength in the range 405–412 nm. The acetylcholinesterase inhibition activity synergy of pairs of alkaloid standards and mixture of all investigated alkaloids was also determined. Most investigated alkaloids and all Sanguinaria canadensis extracts exhibited very high acetylcholinesterase activity inhibition. IC50 values obtained for alkaloid standards were from 0.36 for berberine to 23.13 µg/mL for protopine and from 61.24 to 89.14 µg/mL for Sanguinaria canadensis extracts. Our investigations demonstrated that these plant extracts can be recommended for further in vivo experiments to confirm their acetylcholinesterase activity inhibition.
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Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.); Tel.: +48-664772307 (T.T.); +48-510664914 (A.P.)
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.); Tel.: +48-664772307 (T.T.); +48-510664914 (A.P.)
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24
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Li H, Xie F, Sun Y, Wang M, Chen J, Zhou H, Ding Z. A New Protoilludane Sesquiterpene Aryl Ester from Armillaria sp. YUD17010. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Wen H, Zang Y, Zhu Q, Ouyang S, Luo J, Luo N, Zhu H, Zhang Y. Two new phenolic glucosides from marine-derived fungus Aspergillus sp. Nat Prod Res 2020; 36:3255-3261. [PMID: 33289426 DOI: 10.1080/14786419.2020.1851226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two new phenolic glucosides, including a new O-glycoside (1) and a new C-glycoside (2), were isolated from a marine-derived fungus Aspergillus sp. The structures of new compounds were elucidated through interpretations of spectroscopic evidence and high-resolution electrospray ionization mass spectrometry. The hexose unit of 1 was identified as β-D-glucose by comparison with an authentic sample via HPLC after acid hydrolysis and derivatization. All compounds were evaluated for their ability to inhibit LPS-induced NO production in RAW264.7 macrophages, but none of them displayed significant activity.
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Affiliation(s)
- Huiling Wen
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, China.,Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Zang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Guangdong Microbial Culture Collection Center (GDMCC), Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qianheng Zhu
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, China
| | - Sheng Ouyang
- Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Juanjuan Luo
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, China
| | - Nianhua Luo
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou, China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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26
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Xu K, Zheng Y, Ye Y, Liu D, Zhang W. Desymmetrization of meso-Dicarbonatecyclohexene with β-Hydrazino Carboxylic Esters via a Pd-Catalyzed Allylic Substitution Cascade. Org Lett 2020; 22:8836-8841. [PMID: 33170017 DOI: 10.1021/acs.orglett.0c03211] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The desymmetrization of meso-dicarbonatecyclohexene with β-hydrazino carboxylic esters has been achieved via a RuPHOX/Pd-catalyzed allylic substitution cascade for the construction of chiral hexahydrocinnoline derivatives with high performance. Mechanistic studies reveal that the reaction exploits a pathway different from that of our previous work and that the first nitrogen nucleophilic process is the rate-determining step. The protocol could be conducted on a gram scale without any loss of catalytic behavior, and the corresponding chiral hexahydrocinnolines can undergo diverse transformations.
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Affiliation(s)
- Kai Xu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yan Zheng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yong Ye
- Green Catalysis Center, College of Chemistry, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, P. R. China
| | - Delong Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.,Green Catalysis Center, College of Chemistry, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, P. R. China
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Liang JH, Wang C, Huo XK, Tian XG, Zhao WY, Wang X, Sun CP, Ma XC. The genus Uncaria: A review on phytochemical metabolites and biological aspects. Fitoterapia 2020; 147:104772. [PMID: 33152463 DOI: 10.1016/j.fitote.2020.104772] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/03/2020] [Accepted: 10/25/2020] [Indexed: 12/14/2022]
Abstract
The genus Uncaira (Rubiaceae) comprises of 34 species, many of which are usually used as traditional Chinese medicines (TCMs) to treat hypertension, fever, headache, gastrointestinal illness, and fungal infection. Over the past twenty years, Uncaira species have been paid the considerable attentions in phytochemical and biological aspects, and about 100 new secondary metabolites, including alkaloids, triterpenes, and flavonoids, have been elucidated. This review aims to present a comprehensive and up-to date overview of the biological source, structures and their biosynthetic pathways, as well as the pharmacological of the compounds reported in the genus Uncaria for the past two decades. It would provide an insight into the emerging pharmacological applications of the genus Uncaria.
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Affiliation(s)
- Jia-Hao Liang
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Chao Wang
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Xiao-Kui Huo
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Xiang-Ge Tian
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Wen-Yu Zhao
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China
| | - Xun Wang
- Department of Neurosurgery, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Cheng-Peng Sun
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China.
| | - Xiao-Chi Ma
- College of Pharmacy, College of Integrative Medicine, Dalian Medical University, Dalian, China; Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, Dalian Medical University, Dalian, China.
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28
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Qin N, Lu X, Liu Y, Qiao Y, Qu W, Feng F, Sun H. Recent research progress of Uncaria spp. based on alkaloids: phytochemistry, pharmacology and structural chemistry. Eur J Med Chem 2020; 210:112960. [PMID: 33148492 DOI: 10.1016/j.ejmech.2020.112960] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 02/06/2023]
Abstract
Medicinal plants are well-known in affording clinically useful agents, with rich medicinal values by combining with disease targets through various mechanisms. Plant secondary metabolites as lead compounds lay the foundation for the discovery and development of new drugs in disease treatment. Genus Uncaria from Rubiaceae family is a significant plant source of active alkaloids, with anti-hypertensive, sedative, anti-Alzheimer's disease, anti-drug addiction and anti-inflammatory effects. This review summarizes and discuss the research progress of Uncaria based on alkaloids in the past 15 years, mainly in the past 5 years, including biosynthesis, phytochemistry, pharmacology and structural chemistry. Among, focusing on representative compounds rhynchophylline and isorhynchophylline, the pharmacological activities surrounding the central nervous system and cardiovascular system are described in detail. On the basis of case studies, this article provides a brief overview of the synthesis and analogues of representative compounds types. In summary, this review provides an early basis for further searching for new targets and activities, discussing the mechanisms of pharmacological activity and studying the structure-activity relationships of active molecules.
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Affiliation(s)
- Nan Qin
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Xin Lu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yijun Liu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yuting Qiao
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Wei Qu
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Feng Feng
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Jiangsu Food and Pharmaceutical Science College, Huaian, 223003, People's Republic of China.
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China; Jiangsu Food and Pharmaceutical Science College, Huaian, 223003, People's Republic of China.
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29
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Chen Z, Tian Z, Zhang Y, Feng X, Li Y, Jiang H. Monoterpene indole alkaloids in Uncaria rhynchophlly (Miq.) Jacks chinensis and their chemotaxonomic significance. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Sakamoto J, Umeda Y, Rakumitsu K, Sumimoto M, Ishikawa H. Total Syntheses of (−)‐Strictosidine and Related Indole Alkaloid Glycosides. Angew Chem Int Ed Engl 2020; 59:13414-13422. [DOI: 10.1002/anie.202005748] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Jukiya Sakamoto
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Yuhei Umeda
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Kenta Rakumitsu
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Michinori Sumimoto
- Graduate School of Sciences and Technology for Innovation Yamaguchi University 2-16-1, Tokiwadai Ube Yamaguchi 755-8611 Japan
| | - Hayato Ishikawa
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
- Faculty of Advanced Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
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31
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Sakamoto J, Umeda Y, Rakumitsu K, Sumimoto M, Ishikawa H. Total Syntheses of (−)‐Strictosidine and Related Indole Alkaloid Glycosides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jukiya Sakamoto
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Yuhei Umeda
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Kenta Rakumitsu
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Michinori Sumimoto
- Graduate School of Sciences and Technology for Innovation Yamaguchi University 2-16-1, Tokiwadai Ube Yamaguchi 755-8611 Japan
| | - Hayato Ishikawa
- Department of Chemistry Graduate School of Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
- Faculty of Advanced Science and Technology Kumamoto University 2-39-1, Kurokami, Chuo-ku Kumamoto 860-8555 Japan
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32
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Jia Y, Wen X, Gong Y, Wang X. Current scenario of indole derivatives with potential anti-drug-resistant cancer activity. Eur J Med Chem 2020; 200:112359. [PMID: 32531682 DOI: 10.1016/j.ejmech.2020.112359] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 02/07/2023]
Abstract
Cancer chemotherapy is frequently hampered by drug resistance, so the resistance to anticancer agents represents one of the major obstacles for the effective cancer treatment. Indole derivatives have the potential to act on diverse targets in cancer cells and exhibit promising activity against drug-resistant cancers. Moreover, some indole-containing compounds such as Semaxanib, Sunitinib, Vinorelbine, and Vinblastine have already been applied in clinics for various kinds of cancer even drug-resistant cancer therapy. Thus, indole derivatives are one of significant resources for the development of novel anti-drug-resistant cancer agents. This review focuses on the recent development of indole derivatives with potential therapeutic application for drug-resistant cancers, and the mechanisms of action, the critical aspects of design as well as structure-activity relationships, covering articles published from 2010 to 2020.
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Affiliation(s)
- Yanshu Jia
- Chongqing Institute of Engineering, Chongqing, 400056, China
| | - Xiaoyue Wen
- The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Yufeng Gong
- The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Xuefeng Wang
- Department of Surgery, Zhuji Affiliated Hospital of Shaoxing University, Zhejiang Province, 311800, China.
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