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Abstract
The resistance among various microbial species (infectious agents) to different antimicrobial drugs has emerged as a cause of serious public health problem all over the world. In this sense, natural products have been a rich source of compounds for drug discovery with antibiotic activity. Macrolactins are amazing structures which have antibiotic activity against some clinically relevant pathogens. In addition, they have anti-inflammatory, antifungal, antimicrobial, and antitumor activities. They are macrolides containing 24-membered lactone ring with some differences in their chemical structures. The synthesis of these compounds is a difficult task which has attracted attention of researchers; however few syntheses have been reported. In this review, the isolation of all reported macrolactins, their syntheses and biological activities are revisited.
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Affiliation(s)
- Aurelio Ortiz
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue, 72570, Mexico
| | - Estibaliz Sansinenea
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue, 72570, Mexico
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Patel SB, Vasava DV. The Study on Encapsulation of Copper Nanoparticles in Modified Poly‐Styrene Resin Metrix and its Catalytic Evaluation in Microwave‐Assisted Sonogashira Coupling. ChemistrySelect 2020. [DOI: 10.1002/slct.202001106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sunil B. Patel
- Chemistry School of Sciences, department of chemistryGujarat University, Navrangpura Ahmedabad 380009 India
| | - Dilip V. Vasava
- Chemistry School of Sciences, department of chemistryGujarat University, Navrangpura Ahmedabad 380009 India
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
| | - Leiv K. Sydnes
- Department of Chemistry, University of Bergen, Allégt. 41, Bergen NO-5007, Norway
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
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Liu Y, Qin W, Liu Q, Zhang J, Li H, Xu S, Ren P, Tian L, Li W. Genome-wide identification and characterization of macrolide glycosyltransferases from a marine-derived Bacillus strain and their phylogenetic distribution. Environ Microbiol 2016; 18:4770-4781. [PMID: 27130432 DOI: 10.1111/1462-2920.13367] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 04/25/2016] [Indexed: 11/30/2022]
Abstract
Clarifying glycosyltrasferases (GTs) function is of significance for the development of GT inhibitors as drugs, and the use of GTs to glycodiversify small molecules in the search of drug leads. While many Actinomyces natural-product GTs had been functionally characterized, our understanding towards Bacillus natural-product GTs is so far very limited. Herein, genome-wide identification of macrolide GT genes from marine-derived Bacillus methylotrophicus B-9987 revealed the presence of three macrolide GT genes bmmGT1-3. While bmmGT1 was previously revealed to be involved in the biosynthesis of trans-acyltransferase (AT) polyketides compounds macrolactins (MLNs) and bacillaenes (BAEs), the functions of bmmGT2 and bmmGT3 were probed, demonstrating that they are capable to biochemically catalyze glycosylation of MLNs and BAEs as well but interestingly with different regioselectivity, affording four new MLNs analogs. Notably, further genome mining revealed that the orthologs of these three macrolide GT genes showed a regular distribution in the subtilis- and the cereus-clade Bacillus strains; interestingly, bmmGT1 orthologs only occurred in the subtilis-clade Bacillus, and they were also found in the genomes of Streptomyces strains, suggesting their close phylogenetic relationship. These results provide the first significant insight into the important roles of Bacillus macrolide GTs in the biology of the species.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Wen Qin
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Quanquan Liu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Jun Zhang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Huayue Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Shanshan Xu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Pengfei Ren
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Li Tian
- First Institute of Oceanography, State Oceanic Administration, 6 Xianxialing Road Qingdao, SD, 266061, P. R. China.,Qingdao University of Science & Technology, 53 Zhen Zhou Road Qingdao, SD, 266042, P. R. China
| | - Wenli Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
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Hari TPA, Wilke BI, Davey JA, Boddy CN. Diastereoseletive Transannular Oxa-Conjugate Addition Generates the 2,6-cis-Disubstituted Tetrahydropyran of Neopeltolide. J Org Chem 2015; 81:415-23. [PMID: 26675500 DOI: 10.1021/acs.joc.5b02014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Transannular 2,6-disubstituted pyrans, like the one found in the cytotoxic marine natural product neopeltolide, are a key functional group in many polyketides. While oxa-conjugate additions have been shown to provide direct and rapid access to tetrahydropyrans in acyclic neopeltolide intermediates, a transannular strategy for construction of this ring system in a macrocyclic core has not been investigated. In this study, we demonstrate that a transannular oxa-conjugate addition strategy is a viable approach to the construction of the bicyclic core of neopeltolide. We show that transannular addition occurs readily with an α,β-unsaturated ketone as the Michael acceptor and does not occur when an α,β-unsaturated ester is the Michael acceptor. Our data indicates that oxa-conjugate addition is reversible and that the stereochemical outcome can be under thermodynamic control. Using computational chemistry, we show that the lowest energy diastereomer is the desired cis-pyran found in neopeltolide, and we experimentally demonstrate that the trans and cis diastereomers are interconvertible under reaction conditions with the cis-pyran product predominating. This oxa-conjugate addition strategy should provide a viable route to accessing the fully elaborated macrocyclic core of neopeltolide.
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Affiliation(s)
- Taylor P A Hari
- Department of Chemistry & Biomolecular Sciences, University of Ottawa , Ottawa, Ontario, Canada K1N 6N5
| | - Burkardt I Wilke
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
| | - James A Davey
- Department of Chemistry & Biomolecular Sciences, University of Ottawa , Ottawa, Ontario, Canada K1N 6N5
| | - Christopher N Boddy
- Department of Chemistry & Biomolecular Sciences, University of Ottawa , Ottawa, Ontario, Canada K1N 6N5
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Bae SH, Kwon MJ, Park JB, Kim D, Kim DH, Kang JS, Kim CG, Oh E, Bae SK. Metabolic drug-drug interaction potential of macrolactin A and 7-O-succinyl macrolactin A assessed by evaluating cytochrome P450 inhibition and induction and UDP-glucuronosyltransferase inhibition in vitro. Antimicrob Agents Chemother 2014; 58:5036-46. [PMID: 24890600 DOI: 10.1128/AAC.00018-14] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Macrolactin A (MA) and 7-O-succinyl macrolactin A (SMA), polyene macrolides containing a 24-membered lactone ring, show antibiotic effects superior to those of teicoplanin against vancomycin-resistant enterococci and methicillin-resistant Staphylococcus aureus. MA and SMA are currently being evaluated as antitumor agents in preclinical studies in Korea. We evaluated the potential of MA and SMA for the inhibition or induction of human liver cytochrome P450 (CYP) enzymes and UDP-glucuronosyltransferases (UGTs) in vitro to assess their safety as new molecular entities. We demonstrated that MA and SMA are potent competitive inhibitors of CYP2C9, with Ki values of 4.06 μM and 10.6 μM, respectively. MA and SMA also weakly inhibited UGT1A1 activity, with Ki values of 40.1 μM and 65.3 μM, respectively. However, these macrolactins showed no time-dependent inactivation of the nine CYPs studied. In addition, MA and SMA did not induce CYP1A2, CYP2B6, or CYP3A4/5. On the basis of an in vitro-in vivo extrapolation, our data strongly suggested that MA and SMA are unlikely to cause clinically significant drug-drug interactions mediated via inhibition or induction of most of the CYPs involved in drug metabolism in vivo, except for the inhibition of CYP2C9 by MA. Similarly, MA and SMA are unlikely to inhibit the activity of UGT1A1, UGT1A4, UGT1A6, UGT1A9, and UGT2B7 enzymes in vivo. Although further investigations will be required to clarify the in vivo interactions of MA with CYP2C9-targeted drugs, our findings offer a clearer understanding and prediction of drug-drug interactions for the safe use of MA and SMA in clinical practice.
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Li Z, Gevorgyan V. Double duty for cyanogen bromide in a cascade synthesis of cyanoepoxides. Angew Chem Int Ed Engl 2011; 50:2808-10. [PMID: 21387493 DOI: 10.1002/anie.201006966] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Revised: 01/12/2011] [Indexed: 11/07/2022]
Affiliation(s)
- Zhou Li
- Department of Chemistry, University of Illinois at Chicago, 60607, USA
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Affiliation(s)
- Zhou Li
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, IL 60607 (USA), Fax: (+1) 312‐355‐0836 http://www.chem.uic.edu/vggroup
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, IL 60607 (USA), Fax: (+1) 312‐355‐0836 http://www.chem.uic.edu/vggroup
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Oliveira RA, Oliveira JM, Rahmeier LH, Comasseto JV, Marino JP, Menezes PH. Synthesis of the C7–C24 fragment of (−)-Macrolactin F. Tetrahedron Lett 2008; 49:5759-61. [DOI: 10.1016/j.tetlet.2008.07.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
The preparation of the C4-C24 fragment of the macrolactin A is described. The adopted synthetic strategy involves two isomerizations to selectively construct the (8E,10Z) and (16E,18E) dienes, using a sequential Claisen rearrangement/allene isomerization and a Ph3P-catalyzed isomerization of an yne-one, respectively.
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Affiliation(s)
- Marie Georgy
- ICSN-CNRS Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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Balasubramanian M. Chapter 8 Oxazoles and benzoxazoles. Palladium in Heterocyclic Chemistry - A Guide for the Synthetic Chemist. Elsevier; 2007. pp. 379-406. [DOI: 10.1016/s1460-1567(07)80057-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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