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Cheng WF, Gao SZ, Yang YC, Wang L. Copper Catalyzed [3+2] Annulation Reaction of Exocyclic Sulfonyl Enamides for the Synthesis of N,O-Spiroketal and Spiroketal. Chemistry 2024; 30:e202401062. [PMID: 38821866 DOI: 10.1002/chem.202401062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/25/2024] [Accepted: 05/29/2024] [Indexed: 06/02/2024]
Abstract
A copper-catalyzed [3+2] annulation reaction of exocyclic enamines/enol ethers with 1,4-benzoquinone esters has been developed, providing facile access to N,O-spiroketals and spiroketals under mild conditions with broad substrate scope (26 examples, 71-94 % yields). Gram scale synthesis and chemical transformations demonstrated that this method is potentially useful in the synthesis of natural products and drugs containing a N,O- spiroketal moiety. The chiral N,O-spiroketal could be obtained with 98 % ee after recrystallization, when a chiral SaBOX ligand was employed.
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Affiliation(s)
- Wen-Fu Cheng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Shan-Zeng Gao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Yu-Chen Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Lijia Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, 3663 North Zhongshan Road, Shanghai, 200062, China, China
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Deng J, Che X, Gu Y, Qu Y, Liu D. Integrated multi-omics investigation revealed the importance of phenylpropanoid metabolism in the defense response of Lilium regale Wilson to fusarium wilt. HORTICULTURE RESEARCH 2024; 11:uhae140. [PMID: 38988612 PMCID: PMC11233880 DOI: 10.1093/hr/uhae140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/05/2024] [Indexed: 07/12/2024]
Abstract
Lilies (genus Lilium) play a significant role in the global cut-flower industry, but they are highly susceptible to fusarium wilt caused by Fusarium oxysporum. However, Lilium regale, a wild lily species, exhibits remarkable resistance to F. oxysporum. To investigate the quantitative resistance of L. regale to fusarium wilt, a comprehensive multi-omics analysis was conducted. Upon inoculation with F. oxysporum, L. regale roots showed a significant accumulation of phenylpropane metabolites, including lignin precursors, flavonoids, and hydroxycinnamic acids. These findings were consistent with the upregulated expression of phenylpropanoid biosynthesis-related genes encoding various enzymes, as revealed by transcriptomics and proteomics analyses. Furthermore, metabolomics and proteomics data demonstrated differential activation of monoterpenoid and isoquinoline alkaloid biosynthesis. Colorimetry and high-performance liquid chromatography analyses revealed significantly higher levels of total flavonoids, lignin, ferulic acid, phlorizin, and quercetin contents in L. regale scales compared with susceptible lily 'Siberia' scales during F. oxysporum infection. These phenylpropanes exhibited inhibitory effects on F. oxysporum growth and suppressed the expression of pathogenicity-related genes. Transcriptional regulatory network analysis suggested that ethylene-responsive transcription factors (ERFs) may positively regulate phenylpropanoid biosynthesis. Therefore, LrERF4 was cloned and transiently overexpressed in the fusarium wilt-susceptible Oriental hybrid lily 'Siberia'. The overexpression of LrERF4 resulted in increased levels of total flavonoids, lignin, ferulic acid, phlorizin, and quercetin, while the silencing of LrERF4 in L. regale through RNAi had the opposite effect. In conclusion, phenylpropanoid metabolism plays a crucial role in the defense response of L. regale against fusarium wilt, with LrERF4 acting as a positive regulator of phenylpropane biosynthesis.
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Abass S, Parveen R, Irfan M, Malik Z, Husain SA, Ahmad S. Mechanism of antibacterial phytoconstituents: an updated review. Arch Microbiol 2024; 206:325. [PMID: 38913205 DOI: 10.1007/s00203-024-04035-y] [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: 04/25/2024] [Accepted: 06/05/2024] [Indexed: 06/25/2024]
Abstract
The increase of multiple drug resistance bacteria significantly diminishes the effectiveness of antibiotic armory and subsequently exaggerates the level of therapeutic failure. Phytoconstituents are exceptional substitutes for resistance-modifying vehicles. The plants appear to be a deep well for the discovery of novel antibacterial compounds. This is owing to the numerous enticing characteristics of plants, they are easily accessible and inexpensive, extracts or chemicals derived from plants typically have significant levels of action against infections, and they rarely cause serious adverse effects. The enormous selection of phytochemicals offers very distinct chemical structures that may provide both novel mechanisms of antimicrobial activity and deliver us with different targets in the interior of the bacterial cell. They can directly affect bacteria or act together with the crucial events of pathogenicity, in this manner decreasing the aptitude of bacteria to create resistance. Abundant phytoconstituents demonstrate various mechanisms of action toward multi drug resistance bacteria. Overall, this comprehensive review will provide insights into the potential of phytoconstituents as alternative treatments for bacterial infections, particularly those caused by multi drug resistance strains. By examining the current state of research in this area, the review will shed light on potential future directions for the development of new antimicrobial therapies.
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Affiliation(s)
- Sageer Abass
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Rabea Parveen
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Mohammad Irfan
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Zoya Malik
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Syed Akhtar Husain
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Sayeed Ahmad
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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Wang D, Qin L, Jing C, Wang G, Zhou H, Deng P, Zhang S, Wang Y, Ding Y, Zhang Z, Wu Z, Liu Y. Biologically active isoquinoline alkaloids covering 2019-2022. Bioorg Chem 2024; 145:107252. [PMID: 38437763 DOI: 10.1016/j.bioorg.2024.107252] [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: 10/12/2023] [Revised: 02/04/2024] [Accepted: 02/28/2024] [Indexed: 03/06/2024]
Abstract
Isoquinoline alkaloids are an important class of natural products that are abundant in the plant kingdom and exhibit a wide range of structural diversity and biological activities. With the deepening of research in recent years, more and more isoquinoline alkaloids have been isolated and identified and proved to contain a variety of biological activities and pharmacological effects. In this review, we introduce the research progress of isoquinoline alkaloids from 2019 to 2022, mainly in the part of biological activities, including antitumor, antimicrobial, antidiabetic, antiviral, anti-inflammatory, antioxidant, neuroprotective, hepatoprotective, analgesic, and other activities. This study provides a clear direction for the rational development and utilization of isoquinoline alkaloids, suggesting that these alkaloids have great potential in the field of drug research.
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Affiliation(s)
- Dengtuo Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China
| | - Lulu Qin
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chenxin Jing
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Guanghan Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Han Zhou
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Peng Deng
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Shaoyong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China
| | - Yirong Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Yanyan Ding
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zhijun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Zhengrong Wu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Yingqian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China; State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou 730000, China.
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5
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Tuzimski T, Petruczynik A. New trends in the practical use of isoquinoline alkaloids as potential drugs applicated in infectious and non-infectious diseases. Biomed Pharmacother 2023; 168:115704. [PMID: 37862968 DOI: 10.1016/j.biopha.2023.115704] [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: 08/11/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
In the last years, traditional natural products have been the center of attention for the scientific community and exploration of their therapeutic abilities is proceeding permanently. Isoquinoline alkaloids have always attracted scientific interest due to either their positive or negative effects on human organism. The present review describes research on isoquinoline alkaloids isolated from different plant species. Alkaloids are one of the most important classes of plant derived compounds among these isoquinoline alkaloids possess varied biological activities such as anticancer, antineurodegenerative diseases, antidiabetic, antiinflammatory, antimicrobial, and many others. The use of plants against different disorders is entrenched in traditional medicine around the globe. Recent progress in modern therapeutics has stimulated the use of natural products worldwide for various ailments and diseases. The review provides a collection of information on the capabilities of some isoquinoline alkaloids, its potential for the treatment of various diseases and is designed to be a guide for future research on different biologically active isoquinoline alkaloids and plant species containing them. The authors are aware that they were not able to cover the whole area of the topic related to biological activity of isoquinoline alkaloids. This review is intended to suggest directions for further research and can also help other researchers in future studies.
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Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland.
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland.
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6
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Ahmed N, El-Tabakh MAM, Mohamed HF, Wu X, Xu C, Huang L. Molecular docking and antibacterial activity of Sargassum fusiforme extracts against major coral pathogens. World J Microbiol Biotechnol 2023; 39:318. [PMID: 37743438 DOI: 10.1007/s11274-023-03752-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 09/04/2023] [Indexed: 09/26/2023]
Abstract
The present study evaluates the antibacterial properties of alkaloids and the crude extracts (ethanol, n-hexane and ethyl acetate) from seaweed Sargassum fusiforme against coral pathogens (Photobacterium galatheae, Vibrio harveyi, Bordetella trematum, and Ochrobactrum pseudogrignonese) isolated from coral Porites lutea. To our knowledge, this is the first in vitro assay for such extracts on Porites lutea coral pathogens. Bacterial pathogens have been identified using 16S RNA and BankIt into gene bank and given the accession numbers (OR401000; OR401001; OR401336, and OR400998 respectively). GC-Mass profiling conducted for n-hexane compounds confirmed the presence of thirty-eight molecules, twelve of which have been previously reported for their bioactivity. The results revealed that alkaloids and n-hexane extract demonstrated eminent antibacterial activity compared to the other extracts against the tested coral pathogenic bacteria. Molecular docking was conducted to evaluate the twelve previously mentioned bioactive molecules to get a full understanding of the interaction of those bioactive molecules on vital bacterial proteins (Hemolysin protein (PDB ID: 1XEZ) and Cytoplasmic proteins (PDB ID: 3TZC)). Docked twelve molecules against hemolysin protein (PDB ID: 1XEZ) came exactly in line with the docked result of the same molecules with cytoplasmic proteins (PDB ID: 3TZC), proving the bioactivity of 6-O-Palmitoyl-L-ascorbic acid, 3TMS derivative; Glycerol monostearate, 2TMS derivative and Eicosanoic acid complexes in antibacterial activity action and score higher than reference ligand. Those three compounds will be investigated separately in future in vitro assay soon. Our conclusions align with the study's antibacterial in vitro assay results. The present study reports the novelty of different extracts of S. fusiforme as an antibacterial agent against coral pathogenic bacteria that trigger diseases in Porites lutea.
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Affiliation(s)
- Nedaa Ahmed
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, People's Republic of China.
- College of the Environment & Ecology, Xiamen University, Xiang'an district, Xiamen, 361102, People's Republic of China.
- Faculty of Science, Botany & Microbiology Department (Girls Branch), Al-Azhar University, Cairo, Egypt.
| | - Mohamed A M El-Tabakh
- Faculty of Science, Marine Biology and Ichthyology Branch, Zoology Department (Boys Branch), Al-Azhar University, Cairo, Egypt
| | - Hala F Mohamed
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, People's Republic of China
- Faculty of Science, Botany & Microbiology Department (Girls Branch), Al-Azhar University, Cairo, Egypt
| | - Xudong Wu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, People's Republic of China
| | - Changan Xu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, People's Republic of China
| | - Lingfeng Huang
- College of the Environment & Ecology, Xiamen University, Xiang'an district, Xiamen, 361102, People's Republic of China
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Ashraf MV, Pant S, Khan MAH, Shah AA, Siddiqui S, Jeridi M, Alhamdi HWS, Ahmad S. Phytochemicals as Antimicrobials: Prospecting Himalayan Medicinal Plants as Source of Alternate Medicine to Combat Antimicrobial Resistance. Pharmaceuticals (Basel) 2023; 16:881. [PMID: 37375828 DOI: 10.3390/ph16060881] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Among all available antimicrobials, antibiotics hold a prime position in the treatment of infectious diseases. However, the emergence of antimicrobial resistance (AMR) has posed a serious threat to the effectiveness of antibiotics, resulting in increased morbidity, mortality, and escalation in healthcare costs causing a global health crisis. The overuse and misuse of antibiotics in global healthcare setups have accelerated the development and spread of AMR, leading to the emergence of multidrug-resistant (MDR) pathogens, which further limits treatment options. This creates a critical need to explore alternative approaches to combat bacterial infections. Phytochemicals have gained attention as a potential source of alternative medicine to address the challenge of AMR. Phytochemicals are structurally and functionally diverse and have multitarget antimicrobial effects, disrupting essential cellular activities. Given the promising results of plant-based antimicrobials, coupled with the slow discovery of novel antibiotics, it has become highly imperative to explore the vast repository of phytocompounds to overcome the looming catastrophe of AMR. This review summarizes the emergence of AMR towards existing antibiotics and potent phytochemicals having antimicrobial activities, along with a comprehensive overview of 123 Himalayan medicinal plants reported to possess antimicrobial phytocompounds, thus compiling the existing information that will help researchers in the exploration of phytochemicals to combat AMR.
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Affiliation(s)
- Mohammad Vikas Ashraf
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185 234, India
| | - Shreekar Pant
- Centre for Biodiversity Studies, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185 234, India
| | - M A Hannan Khan
- Department of Zoology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185 234, India
| | - Ali Asghar Shah
- Department of Zoology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185 234, India
| | - Sazada Siddiqui
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Mouna Jeridi
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | | | - Shoeb Ahmad
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185 234, India
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Singh H, Singh D, Lekhak MM. Ethnobotany, botany, phytochemistry and ethnopharmacology of the genus Thalictrum L. (Ranunculaceae): A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 305:115950. [PMID: 36470306 DOI: 10.1016/j.jep.2022.115950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 11/06/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Thalictrum (Ranunculaceae) is known for its important alkaloids which have been reported to exhibit various pharmacological activities, viz. antitumor, antimicrobial, antitussive, antiamebic, hypotensive effects, HIV antiviral, etc. Throughout the world, the plant has been used as a tonic, purgative, stimulant, aperient and is utilized in various systems of medicine in the treatment of various ailments like snake bite, jaundice, rheumatism, stomachache, wounds, swellings, uterine tumors, paralysis, joints pain, nervous disorders, toothache, diarrhea, piles, fever, peptic ulcer, ophthalmic, headache, diuretic, dyspepsia, convalescence, etc. AIMS OF THIS REVIEW: To bring together all the information regarding the botany, phytochemistry, ethnobotany and ethnopharmacology of Thalictrum and identify the gaps in the existing studies so that full medicinal potential of the genus can be realized. METHODS Available literature on botany, geography, traditional uses, phytochemicals, and pharmacology was gathered by referring to library and electronic searches in PubMed, Science Direct, Google Scholar, relevant journals and books. RESULTS A variety of phytochemicals like alkaloids, essential oils, glycosides, phenols and terpenoids have been reported from Thalictrum species. Alkaloids are the most dominant diverse group with 178 different types. The crude extracts and isolates exhibit a gamut of pharmacological activities, namely anticancer, antimalarial, antioxidant, antipyretic, anti-tumor, ant-influenza virus, contraceptive and immunosuppressive. Northalrugosidine, an alkaloid from T. alpinum shows in vivo antileishmanial activity. So far, cytotoxic effects of only three Thalictrum species, viz. T. dasycarpum, T. foliolosum and T. simplex have been reported. Thl isolated from T. simplex is found to be 50% toxic (CC50%) at the concentration ranging from 53 to 95 μM. CONCLUSIONS Thalictrum has tremendous medicinal values used in many traditional systems of medicine. It has multiple chemical components and still there is scope to explore more. Multiple chemical constituents and its utilization signify its high demand in the drug markets or pharmaceutical companies. In depth phytochemical studies along with in vitro studies with respect to their active principles can help in tapping the full medicinal potential of the genus.
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Affiliation(s)
- Harsh Singh
- Department of Botany, North-Eastern Hill University (NEHU), Shillong, Meghalaya, India.
| | - Dharmendra Singh
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, India
| | - Manoj M Lekhak
- Angiosperm Taxonomy Laboratory, Department of Botany, Shivaji University, Kolhapur 416 004, Maharashtra, India
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Synthesis, antibacterial evaluation, and in silico investigations of novel 3-amino-1,2-dihydroisoquinoline derivatives. Struct Chem 2022. [DOI: 10.1007/s11224-022-02116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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de Amorim MR, Paz TA, Pinto LDS, Hilário F, Zanini CL, Aguiar ACC, Silva DES, Furlan M, Guido RVC, Bauab TM, Netto AVDG, Dos Santos LC. New Isoquinoline Alkaloids from Paraphaeosphaeria sporulosa F03, a Fungal Endophyte Isolated from Paepalanthus planifolius. PLANTA MEDICA 2022; 88:994-1003. [PMID: 35045581 DOI: 10.1055/a-1706-4642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As part of our continuing efforts to discover new bioactive compounds from endophytic fungal sources, we have investigated the extract of the Paraphaeosphaeria sporulosa F03 strain. The study led to the isolation of four new 3-methyl-isoquinoline alkaloids (1: - 4: ) and four known polyketides (5: - 8: ). The structures of compounds 1: - 4: were elucidated by 1D and 2D NMR experiments and HRMS analysis. The absolute configuration of 4: was determined by comparison of its experimental electronic circular dichroism spectrum with calculated data. Compounds 1: - 4: exhibited antifungal activity with minimal inhibitory concentration values ranging from 6.25 - 50 µg/mL against six Candida species but they did not present any cytotoxic activity against the human tumor cell lines A549 (lung), MCF-7 (breast), and HepG2 (hepatocellular). In addition, compound 4: exhibited antiplasmodial activity in the low micromolar range (IC50 = 4 µM).
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Affiliation(s)
- Marcelo R de Amorim
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Tiago A Paz
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Luciano da S Pinto
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Felipe Hilário
- School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Camila L Zanini
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP, Brazil
| | | | - Débora E S Silva
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Maysa Furlan
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Rafael V C Guido
- São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP, Brazil
| | - Taís M Bauab
- School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Adelino V de G Netto
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
| | - Lourdes C Dos Santos
- Institute of Chemistry, São Paulo State University (Unesp), Araraquara, SP, Brazil
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11
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Two New Antibacterial Chromeno[3,2-c]Pyridine Alkaloids from Whole Plants of Thalictrum scabrifolium. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03722-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Zhou T, Gao Q, Mi QL, Yang FX, Wu F, Zhu YN, Liu L, Li J, Liu X, Kong WS, Yang GY, Hu QF, Li XM. Two New Benzo[C]Azepin-1-Ones from Whole Plants of Thalictrum glandulosissimum and their Antibacterial Activity. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03653-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Tabernaecorymine a, an 18-normonoterpenoid indole alkaloid with antibacterial activity from Tabernaemontana corymbosa. Fitoterapia 2022; 157:105129. [DOI: 10.1016/j.fitote.2022.105129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 11/22/2022]
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14
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Li YK, Xiong W, Hu QF, Zhang LF, Cai BB, Li Y, Wang HS, Cai HC, Liu MX. Three New Quinoline Alkaloids from the Whole Plant of Thalictrum atriplex and Their Bioactivities. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14591] [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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15
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Yuan HL, Zhao YL, Hu K, He YJ, Yang XW, Luo XD. C 19 Benzylisoquinoline Alkaloid with Unprecedented Architecture from Hypecoum erectum. J Org Chem 2021; 86:16764-16769. [PMID: 34723525 DOI: 10.1021/acs.joc.1c01990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hyperectumine (1), the first C19 benzylisoquinoline alkaloid with a complicated ring system, was isolated from Hypecoum erectum and structurally characterized. Its biosynthetic origin should involve a hybrid pattern of C8 + C8 + C1 + C2, from which a C17 benzylisoquinoline alkaloid might be further attacked by a malonamic acid and undergo decarboxylation and cyclization to produce 1. Compound (-)-1 exhibited moderate anti-inflammatory activity via suppression of LPS-activated inflammatory mediators in RAW 264.7 macrophage cells.
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Affiliation(s)
- Hai-Lian Yuan
- 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
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Kun Hu
- 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
| | - Ying-Jie He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Xing-Wei Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Xiao-Dong Luo
- 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.,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
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Plant isoquinoline alkaloids: Advances in the chemistry and biology of berberine. Eur J Med Chem 2021; 226:113839. [PMID: 34536668 DOI: 10.1016/j.ejmech.2021.113839] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 01/08/2023]
Abstract
Alkaloids are one of the most important classes of plant bioactives. Among these isoquinoline alkaloids possess varied structures and exhibit numerous biological activities. Basically these are biosynthetically produced via phenylpropanoid pathway. However, occasionally some mixed pathways may also occur to provide structural divergence. Among the various biological activities anticancer, antidiabetic, antiinflammatory, and antimicrobial are important. A few notable bioactive isoquinoline alkaloids are antidiabetic berberine, anti-tussive codeine, analgesic morphine, and muscle relaxant papaverine etc. Berberine is one of the most discussed bioactives from this class possessing broad-spectrum pharmacological activities. Present review aims at recent updates of isoquinoline alkaloids with major emphasis on berberine, its detailed chemistry, important biological activities, structure activity relationship and implementation in future research.
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Yan Y, Li X, Zhang C, Lv L, Gao B, Li M. Research Progress on Antibacterial Activities and Mechanisms of Natural Alkaloids: A Review. Antibiotics (Basel) 2021; 10:antibiotics10030318. [PMID: 33808601 PMCID: PMC8003525 DOI: 10.3390/antibiotics10030318] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 12/29/2022] Open
Abstract
Alkaloids are nitrogen-containing heterocyclic compounds typically isolated from plants. They represent one of the most important types of natural products because of their large number and structural diversity and complexity. Based on their chemical core structures, alkaloids are classified as isoquinolines, quinolines, indoles, piperidine alkaloids, etc. In-depth analyses of alkaloids have revealed their antibacterial activities. To date, due to the widespread use of antibiotics, the problem of drug-resistant bacterial infections has been gradually increasing, which severely affects the clinical efficacy of antibacterial therapies and patient safety. Therefore, significant research efforts are focused on alkaloids because they represent a potentially new type of natural antibiotic with a wide antibacterial spectrum, rare adverse reactions, and a low tendency to produce drug resistance. Their main antibacterial mechanisms include inhibition of bacterial cell wall synthesis, change in cell membrane permeability, inhibition of bacterial metabolism, and inhibition of nucleic acid and protein synthesis. This article reviews recent reports about the chemical structures and the antibacterial activities and mechanisms of alkaloids. The purpose is to solve the problem of bacterial resistance and to provide a certain theoretical basis and research ideas for the development of new antibacterial drugs.
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Affiliation(s)
- Yumei Yan
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (Y.Y.); (X.L.); (C.Z.)
| | - Xing Li
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (Y.Y.); (X.L.); (C.Z.)
| | - Chunhong Zhang
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (Y.Y.); (X.L.); (C.Z.)
- Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Baotou Medical College, Baotou 014040, China
- Inner Mongolia Engineering Research Center of the Planting and Development of Astragalus Membranaceus of the Geoherbs, Baotou Medical College, Baotou 014040, China
| | - Lijuan Lv
- Department of Basic Science, Tianjin Agricultural University, Tianjin 300384, China;
| | - Bing Gao
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (Y.Y.); (X.L.); (C.Z.)
- Correspondence: (B.G.); (M.L.)
| | - Minhui Li
- Department of Pharmacy, Baotou Medical College, Baotou 014040, China; (Y.Y.); (X.L.); (C.Z.)
- Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Baotou Medical College, Baotou 014040, China
- Inner Mongolia Engineering Research Center of the Planting and Development of Astragalus Membranaceus of the Geoherbs, Baotou Medical College, Baotou 014040, China
- Pharmaceutical Laboratory, Inner Mongolia Institute of Traditional Chinese Medicine, Hohhot 010020, China
- Correspondence: (B.G.); (M.L.)
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Yang GY, Li YK, Hu QF, Wu F, Zhou T, Zhou M, Zhu YN, Cai BB, Liu MX, Li MF. Three New Anti-Rotavirus Chromeno[3,2-c]pyridines from the Whole Plant of Thalictrum scabrifolium. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Dai J, Han R, Xu Y, Li N, Wang J, Dan W. Recent progress of antibacterial natural products: Future antibiotics candidates. Bioorg Chem 2020; 101:103922. [PMID: 32559577 DOI: 10.1016/j.bioorg.2020.103922] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/01/2020] [Accepted: 05/06/2020] [Indexed: 12/16/2022]
Abstract
The discovery of novel antibacterial molecules plays a key role in solving the current antibiotic crisis issue. Natural products have long been an important source of drug discovery. Herein, we reviewed 256 natural products from 11 structural classes in the period of 2016-01/2020, which were selected by SciFinder with new compounds or new structures and MICs lower than 10 μg/mL or 10 μM as criterions. This review will provide some effective antibacterial lead compounds for medicinal chemists, which will promote the antibiotics research based on natural products to the next level.
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Affiliation(s)
- Jiangkun Dai
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, China(1); State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China(1); School of Life Science and Technology, Weifang Medical University, Shandong, China(1).
| | - Rui Han
- College of Chemistry & Pharmacy, Northwest A&F University, Shaanxi, China(1)
| | - Yujie Xu
- College of Chemistry & Pharmacy, Northwest A&F University, Shaanxi, China(1)
| | - Na Li
- College of Food Science and Technology, Northwest University, Xi'an, China(1).
| | - Junru Wang
- College of Veterinary Medicine, Northwest A&F University, Shaanxi, China(1); College of Chemistry & Pharmacy, Northwest A&F University, Shaanxi, China(1).
| | - Wenjia Dan
- School of Life Science and Technology, Weifang Medical University, Shandong, China(1); College of Chemistry & Pharmacy, Northwest A&F University, Shaanxi, China(1).
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2019. [DOI: 10.1039/c9np90045d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as burlemarxione A from Clusia burle-marxii.
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