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Bishoyi AK, Mandhata CP, Sahoo CR, Paidesetty SK, Padhy RN. Nanosynthesis, phycochemical constituents, and pharmacological properties of cyanobacterium Oscillatoria sp. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1347-1375. [PMID: 37712972 DOI: 10.1007/s00210-023-02719-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023]
Abstract
The Oscillatoria sp., a blue-green alga or cyanobacterium, consists of about 305 species distributed globally. Cyanobacteria are prokaryotes possessing several secondary metabolites that have industrial and biomedical applications. Particularly, the published reviews on Oscillatoria sp. have not recorded any pharmacology, or possible details, while the detailed chemical structures of the alga are reported in the literature. Hence, this study considers pertinent pharmacological activities of the plethora of bioactive components of Oscillatoria sp. Furthermore, the metallic nanoparticles produced with Oscillatoria sp. were documented for plausible antibacterial, antifungal, antioxidant, anticancer, and cytotoxic effects against several cultured human cell lines. The antimicrobial activities of solvent extracts of Oscillatoria sp. and the biotic activities of its derivatives, pyridine, acridine, fatty acids, and triazine were structurally described in detail. To understand the connotations with research gaps and provide some pertinent prospective suggestions for further research on cyanobacteria as potent sources of pharmaceutical utilities, attempts were documented. The compounds of Oscillatoria sp. are a potent source of secondary metabolites that inhibit the cancer cell lines, in vitro. It could be expected that by holistic exploitation, the natural Oscillatoria products, as the source of chemical varieties and comparatively more potent inhibitors, would be explored against pharmacological activities with the integument of SARs.
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Affiliation(s)
- Ajit Kumar Bishoyi
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
| | - Chinmayee Priyadarsani Mandhata
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
| | - Chita Ranjan Sahoo
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
| | - Sudhir Kumar Paidesetty
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India
| | - Rabindra Nath Padhy
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed to Be University, Bhubaneswar, 751003, Odisha, India.
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Bishoyi AK, Sahoo CR, Padhy RN. Recent progression of cyanobacteria and their pharmaceutical utility: an update. J Biomol Struct Dyn 2022; 41:4219-4252. [PMID: 35412441 DOI: 10.1080/07391102.2022.2062051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cyanobacteria (blue-green algae) are Gram-negative photosynthetic eubacteria that are found everywhere. This largest group of photosynthetic prokaryotes is rich in structurally novel and biologically active compounds; several of which have been utilized as prospective drugs against cancer and other ailments, as well. Consequently, the integument of nanoparticles-synthetic approaches in cyanobacterial extracts should increase pharmacological activity. Moreover, silver nanoparticles (AgNPs) are small materials with diameters below 100 nm that are classified into different classes based on their forms, sizes, and characteristics. Indeed, the biosynthesized AgNPs are generated with a variety of organisms, algae, plants, bacteria, and a few others, for the medicinal purposes, as the bioactive compounds of curio and some proteins from cyanobacteria have the potentiality in the treatment of a wide range of infectious diseases. The critical focus of this review is on the antimicrobial, antioxidant, and anticancer properties of cyanobacteria. This would be useful in the pharmaceutical industries in the future drug development cascades.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Ajit Kumar Bishoyi
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Chita Ranjan Sahoo
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Rabindra Nath Padhy
- Central Research Laboratory, Institute of Medical Sciences and Sum Hospital, Siksha "O" Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
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3
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Heravi MM, Nazari A. Samarium(ii) iodide-mediated reactions applied to natural product total synthesis. RSC Adv 2022; 12:9944-9994. [PMID: 35424959 PMCID: PMC8965710 DOI: 10.1039/d1ra08163b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/12/2022] [Indexed: 12/22/2022] Open
Abstract
Natural product synthesis remains a field in which new synthetic methods and reagents are continually being evaluated. Due to the demanding structures and complex functionality of many natural products, only powerful and selective methods and reagents will be highlighted in this proceeding. Since its introduction by Henri Kagan, samarium(ii) iodide (SmI2, Kagan's reagent) has found increasing use in chemical synthesis. Over the years, many reviews have been published on the application of SmI2 in numerous reductive coupling procedures as well as in natural product total synthesis. This review highlights recent advances in SmI2-mediated synthetic strategies, as applied in the total synthesis of natural products since 2004. Natural product synthesis remains a field in which new synthetic methods and reagents are continually being evaluated.![]()
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
| | - Azadeh Nazari
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
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Shahid A, Khurshid M, Aslam B, Muzammil S, Mehwish HM, Rajoka MSR, Hayat HF, Sarfraz MH, Razzaq MK, Nisar MA, Waseem M. Cyanobacteria derived compounds: Emerging drugs for cancer management. J Basic Microbiol 2021; 62:1125-1142. [PMID: 34747529 DOI: 10.1002/jobm.202100459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/11/2021] [Accepted: 10/22/2021] [Indexed: 11/06/2022]
Abstract
The wide diversity of cyanobacterial species and their role in a variety of biological activities have been reported in the previous few years. Cyanobacteria, especially from marine sources, constitutes a major source of biologically active metabolites that have gained great attention especially due to their anticancer potential. Numerous chemically diverse metabolites from various cyanobacterial species have been recognized to inhibit the growth and progression of tumor cells through the induction of apoptosis in many different types of cancers. These metabolites activate the apoptosis in the cancer cells by different molecular mechanisms, however, the dysregulation of the mitochondrial pathway, death receptors signaling pathways, and the activation of several caspases are the crucial mechanisms that got considerable interest. The array of metabolites and the range of mechanisms involved may also help to overcome the resistance acquired by the different tumor types against the ongoing therapeutic agents. Therefore, the primary or secondary metabolites from the cyanobacteria as well as their synthetic derivates could be used to develop novel anticancer drugs alone or in combination with other chemotherapeutic agents. In this study, we have discussed the role of cyanobacterial metabolites in the induction of cytotoxicity and the potential to inhibit the growth of cancer cells through the induction of apoptosis, cell signaling alteration, oxidative damage, and mitochondrial dysfunctions. Moreover, the various metabolites produced by cyanobacteria have been summarized with their anticancer mechanisms. Furthermore, the ongoing trials and future developments for the therapeutic implications of these compounds in cancer therapy have been discussed.
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Affiliation(s)
- Aqsa Shahid
- Faculty of Rehabilitation and Allied Health Sciences, Riphah International University, Faisalabad, Pakistan
| | - Mohsin Khurshid
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Bilal Aslam
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | - Saima Muzammil
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Shahid Riaz Rajoka
- School of Basic Medicine, Health Science Center, Shenzhen University, Shenzhen, China.,Food and Feed Immunology Group, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hafiz Fakhar Hayat
- Department of Microbiology, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Khuram Razzaq
- Soybean Research Institute, National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, China
| | - Muhammad Atif Nisar
- Department of Microbiology, Government College University, Faisalabad, Pakistan.,College of Science and Engineering, Flinders University, Bedford Park, Australia
| | - Muhammad Waseem
- Department of Microbiology, Government College University, Faisalabad, Pakistan
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5
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Mondal A, Bose S, Banerjee S, Patra JK, Malik J, Mandal SK, Kilpatrick KL, Das G, Kerry RG, Fimognari C, Bishayee A. Marine Cyanobacteria and Microalgae Metabolites-A Rich Source of Potential Anticancer Drugs. Mar Drugs 2020; 18:E476. [PMID: 32961827 PMCID: PMC7551136 DOI: 10.3390/md18090476] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/09/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer is at present one of the utmost deadly diseases worldwide. Past efforts in cancer research have focused on natural medicinal products. Over the past decades, a great deal of initiatives was invested towards isolating and identifying new marine metabolites via pharmaceutical companies, and research institutions in general. Secondary marine metabolites are looked at as a favorable source of potentially new pharmaceutically active compounds, having a vast structural diversity and diverse biological activities; therefore, this is an astonishing source of potentially new anticancer therapy. This review contains an extensive critical discussion on the potential of marine microbial compounds and marine microalgae metabolites as anticancer drugs, highlighting their chemical structure and exploring the underlying mechanisms of action. Current limitation, challenges, and future research pathways were also presented.
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Affiliation(s)
- Arijit Mondal
- Department of Pharmaceutical Chemistry, Bengal College of Pharmaceutical Technology, Dubrajpur 731 123, West Bengal, India
| | - Sankhadip Bose
- Department of Pharmacognosy, Bengal School of Technology, Chuchura 712 102, West Bengal, India;
| | - Sabyasachi Banerjee
- Department of Phytochemistry, Gupta College of Technological Sciences, Asansol 713 301, West Bengal, India;
| | - Jayanta Kumar Patra
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Goyang-si 10326, Korea; (J.K.P.); (G.D.)
| | - Jai Malik
- Centre of Advanced Study, University Institute of Pharmaceutical Sciences, Punjab University, Chandigarh 160 014, Punjab, India;
| | - Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry, Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur 713 206, West Bengal, India;
| | | | - Gitishree Das
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Goyang-si 10326, Korea; (J.K.P.); (G.D.)
| | - Rout George Kerry
- Post Graduate Department of Biotechnology, Utkal University, Bhubaneswar 751 004, Odisha, India;
| | - Carmela Fimognari
- Department for Life Quality Studies, Alma Mater Studiorum-Università di Bologna, 47921 Rimini, Italy
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA;
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6
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Hale KJ, Manaviazar S, Watson HA. The O‐Directed Free Radical Hydrostannation of Propargyloxy Dialkyl Acetylenes with Ph3SnH/cat. Et3B. A Refutal of the Stannylvinyl Cation Mechanism. CHEM REC 2018; 19:238-319. [DOI: 10.1002/tcr.201700104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 09/04/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Karl J. Hale
- School of Chemistry and Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB)Queen's University Belfast Stranmillis Road Belfast BT9 5AG, Northern Ireland United Kingdom
| | - Soraya Manaviazar
- School of Chemistry and Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB)Queen's University Belfast Stranmillis Road Belfast BT9 5AG, Northern Ireland United Kingdom
| | - Hamish A. Watson
- School of Chemistry and Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB)Queen's University Belfast Stranmillis Road Belfast BT9 5AG, Northern Ireland United Kingdom
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7
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Wang M, Zhang J, He S, Yan X. A Review Study on Macrolides Isolated from Cyanobacteria. Mar Drugs 2017; 15:md15050126. [PMID: 28445442 PMCID: PMC5450532 DOI: 10.3390/md15050126] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 01/22/2023] Open
Abstract
Cyanobacteria are rich sources of structurally-diverse molecules with promising pharmacological activities. Marine cyanobacteria have been proven to be true producers of some significant bioactive metabolites from marine invertebrates. Macrolides are a class of bioactive compounds isolated from marine organisms, including marine microorganisms in particular. The structural characteristics of macrolides from cyanobacteria mainly manifest in the diversity of carbon skeletons, complexes of chlorinated thiazole-containing molecules and complex spatial configuration. In the present work, we systematically reviewed the structures and pharmacological activities of macrolides from cyanobacteria. Our data would help establish an effective support system for the discovery and development of cyanobacterium-derived macrolides.
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Affiliation(s)
- Mengchuan Wang
- School of Marine Sciences, Laboratory of Marine Natural Products, Ningbo University, Ningbo 315211, China.
| | - Jinrong Zhang
- School of Marine Sciences, Laboratory of Marine Natural Products, Ningbo University, Ningbo 315211, China.
| | - Shan He
- School of Marine Sciences, Laboratory of Marine Natural Products, Ningbo University, Ningbo 315211, China.
| | - Xiaojun Yan
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo 315211, China.
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8
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Singh R, Parihar P, Singh M, Bajguz A, Kumar J, Singh S, Singh VP, Prasad SM. Uncovering Potential Applications of Cyanobacteria and Algal Metabolites in Biology, Agriculture and Medicine: Current Status and Future Prospects. Front Microbiol 2017; 8:515. [PMID: 28487674 PMCID: PMC5403934 DOI: 10.3389/fmicb.2017.00515] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 03/13/2017] [Indexed: 12/05/2022] Open
Abstract
Cyanobacteria and algae having complex photosynthetic systems can channelize absorbed solar energy into other forms of energy for production of food and metabolites. In addition, they are promising biocatalysts and can be used in the field of "white biotechnology" for enhancing the sustainable production of food, metabolites, and green energy sources such as biodiesel. In this review, an endeavor has been made to uncover the significance of various metabolites like phenolics, phytoene/terpenoids, phytols, sterols, free fatty acids, photoprotective compounds (MAAs, scytonemin, carotenoids, polysaccharides, halogenated compounds, etc.), phytohormones, cyanotoxins, biocides (algaecides, herbicides, and insecticides) etc. Apart from this, the importance of these metabolites as antibiotics, immunosuppressant, anticancer, antiviral, anti-inflammatory agent has also been discussed. Metabolites obtained from cyanobacteria and algae have several biotechnological, industrial, pharmaceutical, and cosmetic uses which have also been discussed in this review along with the emerging technology of their harvesting for enhancing the production of compounds like bioethanol, biofuel etc. at commercial level. In later sections, we have discussed genetically modified organisms and metabolite production from them. We have also briefly discussed the concept of bioprocessing highlighting the functioning of companies engaged in metabolites production as well as their cost effectiveness and challenges that are being addressed by these companies.
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Affiliation(s)
- Rachana Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Parul Parihar
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Madhulika Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Andrzej Bajguz
- Faculty of Biology and Chemistry, Institute of Biology, University of BialystokBialystok, Poland
| | - Jitendra Kumar
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Samiksha Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Vijay P. Singh
- Department of Botany, Govt. Ramanuj Pratap Singhdev Post-Graduate CollegeBaikunthpur, Koriya, India
| | - Sheo M. Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
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Monteiro LDS, Bastos KX, Barbosa-Filho JM, de Athayde-Filho PF, Diniz MDFFM, Sobral MV. Medicinal Plants and Other Living Organisms with Antitumor Potential against Lung Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:604152. [PMID: 25147575 PMCID: PMC4131470 DOI: 10.1155/2014/604152] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/05/2014] [Accepted: 07/08/2014] [Indexed: 12/23/2022]
Abstract
Lung cancer is a disease with high morbidity and mortality rates. As a result, it is often associated with a significant amount of suffering and a general decrease in the quality of life. Herbal medicines are recognized as an attractive approach to lung cancer therapy with little side effects and are a major source of new drugs. The aim of this work was to review the medicinal plants and other living organisms with antitumor potential against lung cancer. The assays were conducted with animals and humans, and Lewis lung carcinoma was the most used experimental model. China, Japan, South Korea, and Ethiopia were the countries that most published studies of species with antitumor activity. Of the 38 plants evaluated, 27 demonstrated antitumor activity. In addition, six other living organisms were cited for antitumor activity against lung cancer. Mechanisms of action, combination with chemotherapeutic drugs, and new technologies to increase activity and reduce the toxicity of the treatment are discussed. This review was based on the NAPRALERT databank, Web of Science, and Chemical Abstracts. This work shows that natural products from plants continue to be a rich source of herbal medicines or biologically active compounds against cancer.
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Affiliation(s)
- Luara de Sousa Monteiro
- Department of Pharmaceutical Sciences, Federal University of Paraiba, 58051-900 João Pessoa, PB, Brazil
| | - Katherine Xavier Bastos
- Department of Pharmaceutical Sciences, Federal University of Paraiba, 58051-900 João Pessoa, PB, Brazil
| | - José Maria Barbosa-Filho
- Department of Pharmaceutical Sciences, Federal University of Paraiba, 58051-900 João Pessoa, PB, Brazil
| | | | | | - Marianna Vieira Sobral
- Department of Pharmaceutical Sciences, Federal University of Paraiba, 58051-900 João Pessoa, PB, Brazil
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10
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Hale KJ, Maczka M, Kaur A, Manaviazar S, Ostovar M, Grabski M. Synthesis of the C(7)–C(22) Sector of (+)-Acutiphycin via O-Directed Double Free Radical Alkyne Hydrostannation with Ph3SnH/Et3B, Double I–Sn Exchange, and Double Stille Coupling. Org Lett 2014; 16:1168-71. [DOI: 10.1021/ol500050p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Karl J. Hale
- The School of Chemistry & Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen’s University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Maciej Maczka
- The School of Chemistry & Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen’s University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Amarjit Kaur
- The School of Chemistry & Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen’s University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Soraya Manaviazar
- The School of Chemistry & Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen’s University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Mehrnoosh Ostovar
- The
Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Milosz Grabski
- The School of Chemistry & Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen’s University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
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11
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Hale KJ, Grabski M, Manaviazar S, Maczka M. Asymmetric total synthesis of (+)-inthomycin C via O-directed free radical alkyne hydrostannation with Ph3SnH and catalytic Et3B: reinstatement of the Zeeck-Taylor (3R)-structure for (+)-inthomycin C. Org Lett 2014; 16:1164-7. [PMID: 24502463 DOI: 10.1021/ol5000499] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new pathway to (+)-inthomycin C is reported that exploits an O-directed free radical hydrostannation reaction on (-)-12 and a Stille cross-coupling as key steps. Significantly, the latter process was effected on 19 where a gauche-pentane repulsive interaction could interfere. Our stereochemical studies on the alkynol (-)-12 and the enyne (+)-7 confirm that Ryu and Hatakeyama's (3S)-stereochemical revision of (+)-inthomycin C is invalid and that Zeeck and Taylor's original (3R)-stereostructure for (+)-inthomycin C is correct.
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Affiliation(s)
- Karl J Hale
- The School of Chemistry and Chemical Engineering and the Centre for Cancer Research and Cell Biology (CCRCB), the Queen's University Belfast , Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
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12
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Silveira CC, Martins GM, Mendes SR. Regio- and stereoselective synthesis of (Z)-2-Arylsulfanyl allylic alcohols using anhydrous CeCl3 as catalyst under solvent free conditions. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Dixit RB, Suseela MR. Cyanobacteria: potential candidates for drug discovery. Antonie van Leeuwenhoek 2013; 103:947-61. [DOI: 10.1007/s10482-013-9898-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 02/28/2013] [Indexed: 11/30/2022]
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14
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Yagafarov NZ, Valeev RF, Bikzhanov RF, Iginasheva EI, Miftakhov MS. 5,5-dimethyl-1,3-dioxan-4-ol as orthogonally protected equivalent of 2,2-dimethyl-3-hydroxypropanal. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2012. [DOI: 10.1134/s1070428012060127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Jaiganesh R, Sampath Kumar NS. Marine bacterial sources of bioactive compounds. ADVANCES IN FOOD AND NUTRITION RESEARCH 2012; 65:389-408. [PMID: 22361201 DOI: 10.1016/b978-0-12-416003-3.00025-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Thousands of novel compounds have been isolated from various marine bacteria and tested for pharmacological properties, many of which are commercially available. Many more are being tested as potential bioactive compound at the preclinical and clinical stages. The growing interest in marine-derived antiviral compounds, along with the development of new technology in marine cultures and extraction, will significantly expedite the current exploration of the marine environment for compounds with significant pharmacological applications, which will continue to be a promising strategy and new trend for modern medicine. Marine actinomycetes and cyanobacteria are a prolific but underexploited source for the discovery of novel secondary metabolites.
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Affiliation(s)
- R Jaiganesh
- Department of Biotechnology, School of Bioengineering, SRM University, Tamil Nadu, India.
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16
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Abdel-Raouf N, Ibraheem IBM, Abdel-Tawab S, Naser YAG. ANTIMICROBIAL AND ANTIHYPERLIPIDEMIC ACTIVITIES OF ISOLATED QUERCETIN FROM ANABAENA AEQUALIS(1). JOURNAL OF PHYCOLOGY 2011; 47:955-962. [PMID: 27020030 DOI: 10.1111/j.1529-8817.2011.01020.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study aimed to isolate quercetin (for the first time) from Anabaena aequalis Borge, which inhabits soil surface of Wadi El-Alaqui Protectorate located in Aswan city, Egypt. The isolated compound showed significant antibacterial activity against the gram-positive bacteria Sarcina maxima and Micrococcus kristinae, the gram-negative bacterium Klebsiella pneumoniae, as well as against the filamentous fungus Aspergillus flavus. The isolated compound was identified as quercetin using the structure elucidation based on UV, electrospray ionization mass spectrometry (ESIMS), (1) H and (13) C NMR, proton-proton correlation spectroscopy ((1) H-(1) H COSY), distortionless enhancement by polarization transfer (DEPT), heteronuclear single quantum coherence (HSQC), and heteronuclear multiple bond correlations spectrum (HMBC). Medium lethal dose (LD50 ) of the isolated compound and its side effects against hyperlipidemia induced by ethanol intake in albino rats were carried out. No deaths were reported in rats within 72 h, which suggests that the isolated compound plays a beneficial role as an antihyperlipidemic agent in the treatment of alcohol-induced hepatic tissue damage, which can be described as one of the therapeutic values.
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Affiliation(s)
- Neveen Abdel-Raouf
- Botany and Microbiology Department, Faculty of Science and Medical Studies, Women Students Medical Studies and Sciences Sections, King Saud University for Girls, Riyadh, Saudi ArabiaBotany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi ArabiaZoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, EgyptBotany Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Ibraheem B M Ibraheem
- Botany and Microbiology Department, Faculty of Science and Medical Studies, Women Students Medical Studies and Sciences Sections, King Saud University for Girls, Riyadh, Saudi ArabiaBotany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi ArabiaZoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, EgyptBotany Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Sanaa Abdel-Tawab
- Botany and Microbiology Department, Faculty of Science and Medical Studies, Women Students Medical Studies and Sciences Sections, King Saud University for Girls, Riyadh, Saudi ArabiaBotany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi ArabiaZoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, EgyptBotany Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Yamna A G Naser
- Botany and Microbiology Department, Faculty of Science and Medical Studies, Women Students Medical Studies and Sciences Sections, King Saud University for Girls, Riyadh, Saudi ArabiaBotany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi ArabiaZoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, EgyptBotany Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
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17
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Rastogi RP, Sinha RP. Biotechnological and industrial significance of cyanobacterial secondary metabolites. Biotechnol Adv 2009; 27:521-39. [DOI: 10.1016/j.biotechadv.2009.04.009] [Citation(s) in RCA: 173] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 04/13/2009] [Accepted: 04/14/2009] [Indexed: 01/22/2023]
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18
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Jaiswal P, Singh PK, Prasanna R. Cyanobacterial bioactive molecules — an overview of their toxic properties. Can J Microbiol 2008; 54:701-17. [DOI: 10.1139/w08-034] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Allelopathic interactions involving cyanobacteria are being increasingly explored for the pharmaceutical and environmental significance of the bioactive molecules. Among the toxic compounds produced by cyanobacteria, the biosynthetic pathways, regulatory mechanisms, and genes involved are well understood, in relation to biotoxins, whereas the cytotoxins are less investigated. A range of laboratory methods have been developed to detect and identify biotoxins in water as well as the causal organisms; these methods vary greatly in their degree of sophistication and the information they provide. Direct molecular probes are also available to detect and (or) differentiate toxic and nontoxic species from environmental samples. This review collates the information available on the diverse types of toxic bioactive molecules produced by cyanobacteria and provides pointers for effective exploitation of these biologically and industrially significant prokaryotes.
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Affiliation(s)
- Pranita Jaiswal
- Centre for Conservation and Utilization of Blue Green Algae (CCUBGA), Division of Microbiology, Indian Agricultural Research Institute (IARI), New Delhi 110012, India
- Department of Botany, Banaras Hindu University, Varanasi, India
| | - Pawan Kumar Singh
- Centre for Conservation and Utilization of Blue Green Algae (CCUBGA), Division of Microbiology, Indian Agricultural Research Institute (IARI), New Delhi 110012, India
- Department of Botany, Banaras Hindu University, Varanasi, India
| | - Radha Prasanna
- Centre for Conservation and Utilization of Blue Green Algae (CCUBGA), Division of Microbiology, Indian Agricultural Research Institute (IARI), New Delhi 110012, India
- Department of Botany, Banaras Hindu University, Varanasi, India
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19
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Wase NV, Wright PC. Systems biology of cyanobacterial secondary metabolite production and its role in drug discovery. Expert Opin Drug Discov 2008; 3:903-29. [DOI: 10.1517/17460441.3.8.903] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nishikant V Wase
- The University of Sheffield, Biological and Environmental Systems Group, Department of Chemical and Process Engineering, Mappin St., Sheffield, S1 3JD, UK ;
| | - Phillip C Wright
- The University of Sheffield, Biological and Environmental Systems Group, Department of Chemical and Process Engineering, Mappin St., Sheffield, S1 3JD, UK ;
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20
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MacMillan JB, Xiong-Zhou G, Skepper CK, Molinski TF. Phorbasides A−E, Cytotoxic Chlorocyclopropane Macrolide Glycosides from the Marine Sponge Phorbas sp. CD Determination of C-Methyl Sugar Configurations. J Org Chem 2008; 73:3699-706. [PMID: 18412387 DOI: 10.1021/jo702307t] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John B. MacMillan
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, MC0358, 9500 Gilman Drive, La Jolla, California 92093-0358, and Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616
| | - Guang Xiong-Zhou
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, MC0358, 9500 Gilman Drive, La Jolla, California 92093-0358, and Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616
| | - Colin K. Skepper
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, MC0358, 9500 Gilman Drive, La Jolla, California 92093-0358, and Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616
| | - Tadeusz F. Molinski
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, MC0358, 9500 Gilman Drive, La Jolla, California 92093-0358, and Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616
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21
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Toxin types, toxicokinetics and toxicodynamics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2008; 619:383-415. [DOI: 10.1007/978-0-387-75865-7_16] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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22
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Sparling BA, Moslin RM, Jamison TF. SmI2-promoted Reformatsky-type coupling reactions in exceptionally hindered contexts. Org Lett 2008; 10:1291-4. [PMID: 18302397 DOI: 10.1021/ol800099a] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly substituted, very hindered enones were synthesized using a two-step procedure that utilizes a diiodosamarium-promoted Reformatsky-type coupling and dehydration using Martin sulfurane. Both alpha-chloro- and alpha-bromoketones were coupled with a variety of carbonyl nucleophiles to form the intermediate beta-hydroxyketones, occurring with excellent diastereoselectivity, favoring the syn isomer (R1=Me). This technique complements other methods and enables the preparation of enones outside of the scope of current olefination methodology.
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Affiliation(s)
- Brian A Sparling
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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23
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Abstract
Synthetic studies toward the total synthesis of (+)-acutiphycin (1) resulted in the discovery of additive-free, highly regioselective nickel-catalyzed reductive coupling reactions of aldehydes and 1,6-enynes and the construction of an advanced intermediate in studies directed toward the synthesis of 1. Ultimately, although not employing the nickel-catalyzed reaction, a highly convergent total synthesis of (+)-acutiphycin featuring an intermolecular SmI2-mediated Reformatsky coupling reaction and macrolactonization initiated by a retro-ene reaction of an alkoxyalkyne was achieved. The resulting synthesis was 18 steps in the longest linear sequence from either methyl acetoacetate or isobutyraldehyde.
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Affiliation(s)
- Ryan M. Moslin
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, Massachusetts 02139
| | - Timothy F. Jamison
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, Massachusetts 02139
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24
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Moslin RM, Miller-Moslin K, Jamison TF. Regioselectivity and enantioselectivity in nickel-catalysed reductive coupling reactions of alkynes. Chem Commun (Camb) 2007:4441-9. [PMID: 17971951 DOI: 10.1039/b707737h] [Citation(s) in RCA: 177] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel-catalysed reductive coupling reactions of alkynes have emerged as powerful synthetic tools for the selective preparation of functionalized alkenes. One of the greatest challenges associated with these transformations is control of regioselectivity. Recent work from our laboratory has provided an improved understanding of several of the factors governing regioselectivity in these reactions, and related studies have revealed that the reaction mechanism can differ substantially depending on the ligand employed. A discussion of stereoselective transformations and novel applications of nickel catalysis in coupling reactions of alkynes is also included.
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Affiliation(s)
- Ryan M Moslin
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, MA, USA.
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25
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Heumann LV, Keck GE. A new construction of 2-alkoxypyrans by an acylation-reductive cyclization sequence. Org Lett 2007; 9:1951-4. [PMID: 17428064 PMCID: PMC2516373 DOI: 10.1021/ol070573h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new convergent synthetic approach to a pyran motif common to many naturally occurring structures is described. In this approach, two fragments are joined by esterification, and a subsequent intramolecular reductive cyclization affords the 2-hydroxypyran.
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Affiliation(s)
- Lars V Heumann
- Department of Chemistry, University of Utah, Salt Lake City, UT 84112-0850, USA
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26
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Van Wagoner RM, Drummond AK, Wright JLC. Biogenetic Diversity of Cyanobacterial Metabolites. ADVANCES IN APPLIED MICROBIOLOGY 2007; 61:89-217. [PMID: 17448789 DOI: 10.1016/s0065-2164(06)61004-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ryan M Van Wagoner
- Center for Marine Science, University of North Carolina at Wilmington, Wilmington, NC 28409, USA
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27
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Abstract
An enantioselective, convergent, total synthesis of (+)-acutiphycin (18 steps, longest linear sequence from commercial materials) features the first application of an alkynyl ether as a macrolactone precursor in total synthesis, as well as the first example of an intermolecular, SmI2-mediated, Reformatsky fragment coupling reaction. The high convergence, efficiency, and modular nature of this synthesis make it amenable to the synthesis of structurally related compounds.
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Affiliation(s)
- Ryan M. Moslin
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, Massachusetts 02139
| | - Timothy F. Jamison
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, Massachusetts 02139
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28
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Suenaga K, Hoshino H, Yoshii T, Mori K, Sone H, Bessho Y, Sakakura A, Hayakawa I, Yamada K, Kigoshi H. Enantioselective synthesis of aurisides A and B, cytotoxic macrolide glycosides of marine origin. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.077] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Shirokawa SI, Kamiyama M, Nakamura T, Okada M, Nakazaki A, Hosokawa S, Kobayashi S. Remote Asymmetric Induction with Vinylketene Silyl N,O-Acetal. J Am Chem Soc 2004; 126:13604-5. [PMID: 15493903 DOI: 10.1021/ja0465855] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly regio- and diastereoselective TiCl4-mediated vinylogous Mukaiyama aldol reaction using the chiral vinylketene silyl N,O-acetal has been developed. The present vinylogous Mukaiyama aldol reaction provides a unique and effective means of controlling remote asymmetric induction. The methyl group at the alpha-position is important in achieving a high level of stereoselectivity. From a synthetic point of view, this methodology can provide a one-step construction of delta-hydroxy-alpha,gamma-dimethyl-alpha,beta-unsaturated carbonyl unit that is seen in many natural polyketide products.
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Affiliation(s)
- Shin-Ichi Shirokawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science (RIKADAI), 2641 Yamazaki, Nodashi, Chiba 278-8510, Japan
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30
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31
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Miller KM, Huang WS, Jamison TF. Catalytic asymmetric reductive coupling of alkynes and aldehydes: enantioselective synthesis of allylic alcohols and alpha-hydroxy ketones. J Am Chem Soc 2003; 125:3442-3. [PMID: 12643701 DOI: 10.1021/ja034366y] [Citation(s) in RCA: 229] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly enantioselective method for catalytic reductive coupling of alkynes and aldehydes is described. Allylic alcohols are afforded with complete E/Z selectivity, generally >95:5 regioselectivity, and in up to 96% ee. In conjunction with ozonolysis, this process is complementary to existing methods of enantioselective alpha-hydroxy ketone synthesis.
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Affiliation(s)
- Karen M Miller
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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32
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Tan LT, Márquez BL, Gerwick WH. Lyngbouilloside, a novel glycosidic macrolide from the marine cyanobacterium Lyngbya bouillonii. JOURNAL OF NATURAL PRODUCTS 2002; 65:925-928. [PMID: 12088441 DOI: 10.1021/np010526c] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A glycosidic macrolide, lyngbouilloside (1), was characterized from the marine cyanobacterium Lyngbya bouillonii collected from Papua New Guinea. Its structure was elucidated by spectroscopic analysis and chemical derivatization. Relative stereochemistry was deduced from homonuclear and heteronuclear coupling constants as well as NOE information. Lyngbouilloside was modestly cytotoxic to neuroblastoma cells (IC(50) value of 17 microM).
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Affiliation(s)
- Lik Tong Tan
- College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, USA
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33
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34
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Gerwick WH, Tan LT, Sitachitta N. Nitrogen-containing metabolites from marine cyanobacteria. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2002; 57:75-184. [PMID: 11705123 DOI: 10.1016/s0099-9598(01)57003-0] [Citation(s) in RCA: 129] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- W H Gerwick
- College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, USA
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35
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36
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Structure of pittosporumxanthins A1 and A2, novel C69 carotenoids from the seeds of Pittosporum tobira. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00244-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Marshall JA, Yanik MM. Stereoselective synthesis of substituted ketopyranose subunits of polyketide natural products by intramolecular alkoxycarbonylation of δ-alkynyl alcohols. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)00705-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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38
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Kiyooka Si SI, Hena MA. A Study Directed to the Asymmetric Synthesis of the Antineoplastic Macrolide Acutiphycin under Enantioselective Acyclic Stereoselection Based on Chiral Oxazaborolidinone-Promoted Asymmetic Aldol Reactions. J Org Chem 1999; 64:5511-5523. [PMID: 11674615 DOI: 10.1021/jo990342r] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A shortening of the reaction path can be realized by using a series of the chiral oxazaborolidinone-promoted aldol reaction with respect to the practical synthesis of the (+)-acutiphycin seco acid derivative 5. The linear strategy is based on the utilization of five aldol reactions with a sequence of silyl nucleophiles, 7, 8, 35, 10, and 11, in the presence of stoichiometric amounts of the promoter, 1 or 2. The construction of the relative configuration between the stereogenic centers is diastereoselectively controlled by the stereochemistry of the promoter used in the enantioselective aldol reaction, which is nearly independent of that of the substrate (promoter control).
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39
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Hena MA, Kim CS, Horiike M, Kiyooka SI. Toward a practical synthesis of acutiphycin. Highly stereoselective synthesis of C10-epi seco acid derivative via reaction paths shortened by using a series of chiral oxazaborolidinone-promoted aldol reactions. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(98)02553-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Smith AB, Chen SSY, Nelson FC, Reichert JM, Salvatore BA. Total Syntheses of (+)-Acutiphycin and (+)-trans-20,21-Didehydroacutiphycin. J Am Chem Soc 1997. [DOI: 10.1021/ja972497r] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amos B. Smith
- Contribution from the Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Sean S.-Y. Chen
- Contribution from the Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Frances C. Nelson
- Contribution from the Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Janice M. Reichert
- Contribution from the Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Brian A. Salvatore
- Contribution from the Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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41
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Sone H, Kigoshi H, Yamada K. Aurisides A and B, Cytotoxic Macrolide Glycosides from the Japanese Sea Hare Dolabella auricularia. J Org Chem 1996; 61:8956-8960. [PMID: 11667877 DOI: 10.1021/jo961302f] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bioassay-guided fractionation of the cytotoxic constituents of the Japanese sea hare Dolabella auricularia led to the isolation of two novel cytotoxic compounds, aurisides A (1) and B (2). Their gross structures were established by spectroscopic analysis including the 2D NMR technique. On the basis of the NOESY spectral analysis and the degradation experiments, their absolute stereostructures were determined to be 14-membered macrolide glycosides that contain a bromine-substituted conjugated diene structure, a cyclic hemiacetal moiety, and a 2,4-di-O-methyl-L-rhamnopyranoside part. Aurisides A (1) and B (2) show cytotoxicity against HeLa S(3) cells with IC(50) values of 0.17 and 1.2 &mgr;g/mL, respectively.
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Affiliation(s)
- Hiroki Sone
- Department of Chemistry, Faculty of Science, Nagoya University, Chikusa, Nagoya 464, Japan
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42
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Zampella A, D'Auria MV, Minale L, Debitus C, Roussakis C. Callipeltoside A: A Cytotoxic Aminodeoxy Sugar-Containing Macrolide of a New Type from the Marine Lithistida Sponge Callipelta sp. J Am Chem Soc 1996. [DOI: 10.1021/ja9621004] [Citation(s) in RCA: 132] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Angela Zampella
- Contribution from the Dipartimento di Chimica delle Sostanze Naturali, Universita' degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy, ORSTOM, Centre de Nouméa New Caledonia, and Institut des Substances et Organismes de la Mer (ISOMER), Facultè de Pharmacie, University of Nantes, 1-Rue Gaston Veil, 44035 Nantes Cedex 01, France
| | - M. Valeria D'Auria
- Contribution from the Dipartimento di Chimica delle Sostanze Naturali, Universita' degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy, ORSTOM, Centre de Nouméa New Caledonia, and Institut des Substances et Organismes de la Mer (ISOMER), Facultè de Pharmacie, University of Nantes, 1-Rue Gaston Veil, 44035 Nantes Cedex 01, France
| | - Luigi Minale
- Contribution from the Dipartimento di Chimica delle Sostanze Naturali, Universita' degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy, ORSTOM, Centre de Nouméa New Caledonia, and Institut des Substances et Organismes de la Mer (ISOMER), Facultè de Pharmacie, University of Nantes, 1-Rue Gaston Veil, 44035 Nantes Cedex 01, France
| | - Cécile Debitus
- Contribution from the Dipartimento di Chimica delle Sostanze Naturali, Universita' degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy, ORSTOM, Centre de Nouméa New Caledonia, and Institut des Substances et Organismes de la Mer (ISOMER), Facultè de Pharmacie, University of Nantes, 1-Rue Gaston Veil, 44035 Nantes Cedex 01, France
| | - Christos Roussakis
- Contribution from the Dipartimento di Chimica delle Sostanze Naturali, Universita' degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Napoli, Italy, ORSTOM, Centre de Nouméa New Caledonia, and Institut des Substances et Organismes de la Mer (ISOMER), Facultè de Pharmacie, University of Nantes, 1-Rue Gaston Veil, 44035 Nantes Cedex 01, France
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43
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Beuerle T, Schreier P, Brunerie P, Bicchi C, Schwab W. Absolute configuration of octanol derivatives in apple fruits. PHYTOCHEMISTRY 1996; 43:145-149. [PMID: 8987509 DOI: 10.1016/0031-9422(96)00215-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In extracts obtained by liquid-liquid extraction and enzymatic hydrolysis from five apple cultivars (Renao; Bedan; Peau de Chien; Noel des Champs; Red Delicious), chiral evaluation of free and glycosidically-bound octane-1,3-diol and 5(Z)-octene-1,3-diol, as well as ethyl 3-hydroxyoctanoate and ethyl 5(Z)-3-hydroxyoctenoate, was performed by multidimensional gas chromatography (MDGC), combining a polar achiral column (DB-Wax) with a chiral main column (2,3-di-O-acetyl-6-O-tert. butyldimethylsilyl-beta-cyclodextrin/OV 1701). Comparison of retention times of synthesized optically-enriched reference compounds with isolated diols and hydroxyesters, revealed the (R)-configuration for the free diols in cvs. Renao, Bedan, Peau de Chien and Noel des Champs and the (R)-configuration for the bound diols in cvs Bedan, Peau de Chien and Noel des Champs, exhibiting enantiomeric excesses (ees) greater than 99%. (R)-hydroxyesters (ee > 99%) were detected in cvs. Noel des Champs and Red Delicious.
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Affiliation(s)
- T Beuerle
- Lehrstuhl für Lebensmittelchemie, Universität Würzburg, Germany
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44
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Diastereoselective bromine/lithium-exchange applied to the synthesis of a C-1/C-9-segment of the bryostatins. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00821-s] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Bedorf N, Schomburg D, Gerth K, Reichenbach H, Höfle G. Antibiotics from Gliding Bacteria, LIV. Isolation and Structure Elucidation of Soraphen A1α, a Novel Antifungal Macrolide fromSorangium cellulosum. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/jlac.1993199301161] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Factors affecting antibiotic production in bioreactors with immobilized algal cells. Appl Biochem Biotechnol 1993. [DOI: 10.1007/bf02919019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Mohan HR, Rao AS. ENANTIOSELECTIVE SYNTHESIS OF (4R)-4-NONANOLIDE AND (5R)-5-DECANOLIDE FROM A COMMON INTERMEDIATE. ORG PREP PROCED INT 1993. [DOI: 10.1080/00304949309457967] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Suzuki T, Ohtaguchi K, Koide K. Call Growth Inhibition in Mouse Leukemia L5178Y Cells in Vitro by Crude Extracts from Freshwater Blue-green Algae. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1993. [DOI: 10.1252/jcej.26.463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takahiro Suzuki
- Department of Chemical Engineering, Tokyo Institute of Technology
| | | | - Kozo Koide
- Department of Chemical Engineering, Tokyo Institute of Technology
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Hoffmann RW, Schlapbach A. Allylboration-reactions, the key to a short synthesis of benzoyl-pedamide. Tetrahedron 1992. [DOI: 10.1016/s0040-4020(01)88867-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gerwick WH, Mrozek C, Moghaddam MF, Agarwal SK. Novel cytotoxic peptides from the tropical marine cyanobacterium Hormothamnion enteromorphoides. 1. Discovery, isolation and initial chemical and biological characterization of the hormothamnins from wild and cultured material. EXPERIENTIA 1989; 45:115-21. [PMID: 2493387 DOI: 10.1007/bf01954842] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A Caribbean cyanobacterium, Hormothamnion enteromorphoides, was found to produce a complex mixture of ichthyotoxic peptides, perhaps explaining the apparent absence of predation upon these potentially palatable life forms. Bioassay-guided fractionation was used to isolate these toxic and antimicrobial natural products, and a variety of techniques including HR FAB mass spectrometry, 2D-NMR, traditional hydrolysis-amino acid analysis, and several chemical reactions were used to define the basic structural features of the major peptide, hormothamnin A. Hormothamnin A is a cyclic undecapeptide containing six common and five uncommon or new amino acid residues. HPLC analyses indicate that the relative proportions of these peptide natural products remain relatively constant between different collection locations and years, however, they do vary seasonally. Clonal isolates of this cyanobacterium in culture produce the full spectrum of toxic peptides.
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Affiliation(s)
- W H Gerwick
- College of Pharmacy, Oregon State University, Corvallis 97331
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