1
|
Affiliation(s)
- Zaid Alkhier Hamamah
- Ulm University Institute of Chemical Engineering Laboratory of Thermal Process Engineering Albert-Einstein-Allee 47 89081 Ulm Germany
| | - Thomas Grützner
- Ulm University Institute of Chemical Engineering Laboratory of Thermal Process Engineering Albert-Einstein-Allee 47 89081 Ulm Germany
| |
Collapse
|
2
|
Heinilä LMP, Fewer DP, Jokela JK, Wahlsten M, Ouyang X, Permi P, Jortikka A, Sivonen K. The structure and biosynthesis of heinamides A1-A3 and B1-B5, antifungal members of the laxaphycin lipopeptide family. Org Biomol Chem 2021; 19:5577-5588. [PMID: 34085692 DOI: 10.1039/d1ob00772f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Laxaphycins are a family of cyclic lipopeptides with synergistic antifungal and antiproliferative activities. They are produced by multiple cyanobacterial genera and comprise two sets of structurally unrelated 11- and 12-residue macrocyclic lipopeptides. Here, we report the discovery of new antifungal laxaphycins from Nostoc sp. UHCC 0702, which we name heinamides, through antimicrobial bioactivity screening. We characterized the chemical structures of eight heinamide structural variants A1-A3 and B1-B5. These variants contain the rare non-proteinogenic amino acids 3-hydroxy-4-methylproline, 4-hydroxyproline, 3-hydroxy-d-leucine, dehydrobutyrine, 5-hydroxyl β-amino octanoic acid, and O-carbamoyl-homoserine. We obtained an 8.6-Mb complete genome sequence from Nostoc sp. UHCC 0702 and identified the 93 kb heinamide biosynthetic gene cluster. The structurally distinct heinamides A1-A3 and B1-B5 variants are synthesized using an unusual branching biosynthetic pathway. The heinamide biosynthetic pathway also encodes several enzymes that supply non-proteinogenic amino acids to the heinamide synthetase. Through heterologous expression, we showed that (2S,4R)-4-hydroxy-l-proline is supplied through the action of a novel enzyme LxaN, which hydroxylates l-proline. 11- and 12-residue heinamides have the characteristic synergistic activity of laxaphycins against Aspergillus flavus FBCC 2467. Structural and genetic information of heinamides may prove useful in future discovery of natural products and drug development.
Collapse
Affiliation(s)
| | - David Peter Fewer
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Jouni Kalevi Jokela
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Matti Wahlsten
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Xiaodan Ouyang
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Perttu Permi
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland and Department of Biological and Environmental Science, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Anna Jortikka
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Kaarina Sivonen
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| |
Collapse
|
3
|
Abstract
Tandem catalysis enables the rapid construction of complex architectures from simple building blocks. This Perspective shares our interest in combining stereoselective hydrogenation with transformations such as isomerization, oxidation, and epimerization to solve diverse challenges. We highlight the use of tandem hydrogenation for preparing complex natural products from simple prochiral building blocks and present tandem catalysis involving transfer hydrogenation and dynamic kinetic resolution. Finally, we underline recent breakthroughs and opportunities for asymmetric hydrogenation.
Collapse
Affiliation(s)
- Patrick D Parker
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Xintong Hou
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Vy M Dong
- Department of Chemistry, University of California, Irvine, California 92697, United States
| |
Collapse
|
4
|
Raju KR, Mahesh NM, Reddy BS, Raju KM. Improved Large-scale One-pot Synthesis of Pure Doripenem Hydrate (S-4661). ORG PREP PROCED INT 2016. [DOI: 10.1080/00304948.2016.1194130] [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] [Indexed: 10/21/2022]
|
5
|
Nakatsuji H, Ashida Y, Hori H, Sato Y, Honda A, Taira M, Tanabe Y. (E)- and (Z)-stereodefined enol phosphonates derived from β-ketoesters: stereocomplementary synthesis of fully-substituted α,β-unsaturated esters. Org Biomol Chem 2015; 13:8205-10. [DOI: 10.1039/c5ob01097g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile, robust, and stereocomplementary synthesis of fully-substituted (E)- and (Z)-stereodefined α,β-unsaturated esters 3 from accessible α-substituted β-ketoesters 1via (E)- and (Z)-enol phosphonates was achieved.
Collapse
Affiliation(s)
- Hidefumi Nakatsuji
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yuichiro Ashida
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Hiroshi Hori
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yuka Sato
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Atsushi Honda
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Mayu Taira
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| | - Yoo Tanabe
- Department of Chemistry
- School of Science and Technology
- Kwansei Gakuin University
- Sanda
- Japan
| |
Collapse
|
6
|
Singh SB, Rindgen D, Bradley P, Suzuki T, Wang N, Wu H, Zhang B, Wang L, Ji C, Yu H, Soll RM, Olsen DB, Meinke PT, Nicoll-Griffith DA. Design, Synthesis, Structure–Function Relationship, Bioconversion, and Pharmacokinetic Evaluation of Ertapenem Prodrugs. J Med Chem 2014; 57:8421-44. [PMID: 25265501 DOI: 10.1021/jm500879a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sheo B. Singh
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Diane Rindgen
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Prudence Bradley
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Takao Suzuki
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Nengxue Wang
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Hao Wu
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Basheng Zhang
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Li Wang
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Chongmin Ji
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Hongshi Yu
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - Richard M. Soll
- WuXi AppTec, 288 Fute Zhong
Road, Shanghai 200131, People’s Republic of China
| | - David B. Olsen
- Merck Research Laboratories, West Point, Pennsylvania 19486, United States
| | - Peter T. Meinke
- Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | | |
Collapse
|
7
|
Abstract
The discovery and implementation of antibiotics in the early twentieth century transformed human health and wellbeing. Chemical synthesis enabled the development of the first antibacterial substances, organoarsenicals and sulfa drugs, but these were soon outshone by a host of more powerful and vastly more complex antibiotics from nature: penicillin, streptomycin, tetracycline, and erythromycin, among others. These primary defences are now significantly less effective as an unavoidable consequence of rapid evolution of resistance within pathogenic bacteria, made worse by widespread misuse of antibiotics. For decades medicinal chemists replenished the arsenal of antibiotics by semisynthetic and to a lesser degree fully synthetic routes, but economic factors have led to a subsidence of this effort, which places society on the precipice of a disaster. We believe that the strategic application of modern chemical synthesis to antibacterial drug discovery must play a critical role if a crisis of global proportions is to be averted.
Collapse
Affiliation(s)
- Peter M. Wright
- Department of Chemistry and Chemical Biology, Harvard University Cambridge, MA 02138 (USA)
| | - Ian B. Seiple
- Department of Chemistry and Chemical Biology, Harvard University Cambridge, MA 02138 (USA)
| | - Andrew G. Myers
- Department of Chemistry and Chemical Biology, Harvard University Cambridge, MA 02138 (USA)
| |
Collapse
|
8
|
|
9
|
Burckhardt I, Zimmermann S. Using matrix-assisted laser desorption ionization-time of flight mass spectrometry to detect carbapenem resistance within 1 to 2.5 hours. J Clin Microbiol 2011; 49:3321-4. [PMID: 21795515 DOI: 10.1128/JCM.00287-11] [Citation(s) in RCA: 251] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In recent years, the percentage of carbapenem-resistant bacteria has increased at an alarming pace and become a major threat for patient survival. Carbapenemase-induced carbapenem resistance can be confirmed through the detection of carbapenem degradation using matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). This method works for strains carrying NDM-1, VIM-1, VIM-2, KPC-2, and different IMP enzymes.
Collapse
|
10
|
|
11
|
Krow GR, Edupuganti R, Gandla D, Choudhary A, Lin G, Sonnet PE, DeBrosse C, Ross CW, Cannon KC, Raines RT. 5(6)-anti-Substituted-2-azabicyclo[2.1.1]hexanes: a nucleophilic displacement route. J Org Chem 2009; 74:8232-42. [PMID: 19799411 PMCID: PMC3374851 DOI: 10.1021/jo901725k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nucleophilic displacements of 5(6)-anti-bromo substituents in 2-azabicyclo[2.1.1]hexanes (methanopyrrolidines) have been accomplished. These displacements have produced 5-anti-X-6-anti-Y-difunctionalized-2-azabicyclo[2.1.1]hexanes containing bromo, fluoro, acetoxy, hydroxy, azido, imidazole, thiophenyl, and iodo substituents. Such displacements of anti-bromide ions require an amine nitrogen and are a function of the solvent and the choice of metal salt. Reaction rates were faster and product yields were higher in DMSO when compared to DMF and with CsOAc compared to NaOAc. Sodium or lithium salts gave products, except with NaF, where silver fluoride in nitromethane was best for substitution by fluoride. The presence of electron-withdrawing F, OAc, N(3), Br, or SPh substituents in the 6-anti-position slows bromide displacements at the 5-anti-position.
Collapse
Affiliation(s)
- Grant R Krow
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Kumar Singh S, Singh GB, Byri VK, Satish B, Dhamjewar R, Gopalan B. Novel Synthesis of (3R,4R)‐4‐Acetoxy‐3‐[1′(R)‐tert‐butyldimethylsilyloxyethyl] Azetidin‐2‐one: A Key Intermediate for Penem and Carbapenem Synthesis. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910701651300] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - G. B. Singh
- a Matrix Laboratories Limited , Andhra Pradesh, India
| | - V. K. Byri
- a Matrix Laboratories Limited , Andhra Pradesh, India
| | - B. Satish
- a Matrix Laboratories Limited , Andhra Pradesh, India
| | | | - B. Gopalan
- a Matrix Laboratories Limited , Andhra Pradesh, India
| |
Collapse
|
13
|
Sajonz P, Vailaya A, Sudah O, McPherson L, Capodanno V, Natishan TK, Helmy R, Antia FD. Development of a gradient elution preparative high performance liquid chromatography method for the recovery of the antibiotic ertapenem from crystallization process streams. J Chromatogr A 2006; 1126:365-72. [PMID: 16735042 DOI: 10.1016/j.chroma.2006.04.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2006] [Revised: 04/25/2006] [Accepted: 04/26/2006] [Indexed: 11/18/2022]
Abstract
A gradient elution preparative chromatography method was developed for the recovery of the antibiotic ertapenem from crystallization mother-liquor streams. The preparative HPLC method that was developed on the lab-scale employs an analytical size column of conventional dimensions (25 cm x 0.46 cm) packed with Kromasil C8 stationary phase. Gradient elution was used with aqueous acetic acid and acetonitrile as mobile phases. A target of processing approximately 30 mg of ertapenem per half an hour at a flow rate of 1.5 mL/min with high yield and adequate rejection of all major impurities was achieved. This corresponds to a productivity of approximately 0.6 kg ertapenem as free acid per kilogram of stationary phase per day (kkd). The scalability of the method was demonstrated by using a 5 cm i.d. column configuration to generate 10 g of purified ertapenem. This work complements a previous study improving on the productivity and throughput of the method by employing gradient elution and the use of crystallization to remove some key impurities that are chromatographically difficult to resolve [A. Vailaya, P. Sajonz, O. Sudah, V. Capodanno, R. Helmy, F.D. Antia, J. Chromatogr. A 1079 (2005) 80].
Collapse
Affiliation(s)
- Peter Sajonz
- Merck Research Laboratories, Merck & Co. Inc., Rahway, NJ 07065, USA.
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Krow GR, Huang Q, Lin G, Centafont RA, Thomas AM, Gandla D, Debrosse C, Carroll PJ. 5-Carboxy-2-azabicyclo[2.1.1]hexanes as Precursors of 5-Halo, Amino, Phenyl, and 2-Methoxycarbonylethyl Methanopyrrolidines. J Org Chem 2006; 71:2090-8. [PMID: 16496997 DOI: 10.1021/jo052506b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel 5-X-substituted-2-azabicyclo[2.1.1]hexanes (X = 5-syn-Cl, -Br, -I, -Ph, -NHCOOR (R = Me, Bn, t-Bu), -CH2CH2COOMe and X = 5-anti-Br, -I, -Ph) were synthesized from the X = 5-syn-carboxy derivative. New 5-anti-X-2-azabicyclo[2.1.1]hexanes, X = NHCOOR (R = Me, Bn), were prepared stereoselectively from the X = 5-anti-carboxy substrate.
Collapse
Affiliation(s)
- Grant R Krow
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.
| | | | | | | | | | | | | | | |
Collapse
|