1
|
Szczeblewski P, Górska J, Andrałojć W, Janke P, Wąsik K, Laskowski T. Iso-Partricin, an Aromatic Analogue of Amphotericin B: How Shining Light on Old Drugs Might Help Create New Ones. Antibiotics (Basel) 2021; 10:1102. [PMID: 34572684 PMCID: PMC8470227 DOI: 10.3390/antibiotics10091102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/02/2021] [Accepted: 09/10/2021] [Indexed: 11/22/2022] Open
Abstract
Partricin is a heptaene macrolide antibiotic complex that exhibits exceptional antifungal activity, yet poor selective toxicity, in the pathogen/host system. It consists of two compounds, namely partricin A and B, and both of these molecules incorporate two cis-type bonds within their heptaenic chromophores: 28Z and 30Z. In this contribution, we have proven that partricins are susceptible to a chromophore-straightening photoisomerization process. The occurring 28Z→28E and 30Z→30E switches are irreversible in given conditions, and they are the only structural changes observed during the experiment. The obtained all-trans partricin's derivatives, namely iso-partricins A and B, exhibit very promising features, potentially resulting in the improvement of their selective toxicity.
Collapse
Affiliation(s)
- Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233 Gdańsk, Poland; (P.S.); (J.G.); (P.J.); (K.W.)
| | - Justyna Górska
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233 Gdańsk, Poland; (P.S.); (J.G.); (P.J.); (K.W.)
| | - Witold Andrałojć
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Zygmunta Noskowskiego Str. 12/14, 61-704 Poznań, Poland;
| | - Patryk Janke
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233 Gdańsk, Poland; (P.S.); (J.G.); (P.J.); (K.W.)
| | - Karolina Wąsik
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233 Gdańsk, Poland; (P.S.); (J.G.); (P.J.); (K.W.)
| | - Tomasz Laskowski
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Centre, Faculty of Chemistry, Gdańsk University of Technology, Gabriela Narutowicza Str. 11/12, 80-233 Gdańsk, Poland; (P.S.); (J.G.); (P.J.); (K.W.)
| |
Collapse
|
2
|
Ipertrofan Revisited-The Proposal of the Complete Stereochemistry of Mepartricin A and B. Molecules 2021; 26:molecules26185533. [PMID: 34577003 PMCID: PMC8467382 DOI: 10.3390/molecules26185533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/09/2021] [Accepted: 09/09/2021] [Indexed: 11/18/2022] Open
Abstract
Being a methyl ester of partricin, the mepartricin complex is the active substance of a drug called Ipertrofan (Tricandil), which was proven to be useful in treatment of benign prostatic hyperplasia and chronic nonbacterial prostatitis/chronic pelvic pain syndrome. Nevertheless, no direct structural evidence on the stereochemistry of its components has been presented to date. In this contribution, we have conducted detailed, NMR-driven stereochemical studies on mepartricins A and B, aided by molecular dynamics simulations. The absolute configuration of all the stereogenic centers of mepartricin A and B was defined as 3R, 7R, 9R, 11S, 13S, 15R, 17S, 18R, 19S, 21R, 36S, 37R, and 38S, and proposed as 41R. The geometry of the heptaenic chromophore of both compounds has been established as 22E, 24E, 26E, 28Z, 30Z, 32E, and 34E. Our studies on mepartricin ultimately proved that partricins A and B are structurally identical to the previously described main components of the aureofacin complex: gedamycin and vacidin, respectively. The knowledge of the stereochemistry of this drug is a fundamental matter not only in terms of studies on its molecular mode of action, but also for potential derivatization, aiming at improvement of its pharmacological properties.
Collapse
|
3
|
Borzyszkowska-Bukowska J, Szczeblewski P, Konkol A, Grynda J, Szwarc-Karabyka K, Laskowski T. The complete stereochemistry of the antibiotic candicidin A3 (syn. ascosin A3, levorin A3). Nat Prod Res 2019; 34:2869-2879. [PMID: 30961366 DOI: 10.1080/14786419.2019.1596095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Herein, the stereostructure of the aromatic heptaene macrolide (AHM) antifungal antibiotic candicidin A3 (syn. ascosin A3, levorin A3) has been established upon the 2D NMR studies, consisting of DQF-COSY, TOCSY, ROESY, HSQC and HMBC experiments, as well as upon extensive molecular dynamics simulations. The geometry of the heptaenic chromophore was defined as: (22E, 24E, 26Z, 28Z, 30E, 32E, 34E). The previously unreported absolute configuration of the chiral centres of candicidin A3 was established as: (3R, 9R, 11S, 13S, 15R, 17S, 18R, 19S, 21R, 36S, 37R, 38S, 40S, 41S).
Collapse
Affiliation(s)
- Julia Borzyszkowska-Bukowska
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Agnieszka Konkol
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Jakub Grynda
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Katarzyna Szwarc-Karabyka
- Nuclear Magnetic Resonance Laboratory, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Tomasz Laskowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| |
Collapse
|
4
|
Szczeblewski P, Laskowski T, Bałka A, Borowski E, Milewski S. Light-Induced Transformation of the Aromatic Heptaene Antifungal Antibiotic Candicidin D into Its All-Trans Isomer. JOURNAL OF NATURAL PRODUCTS 2018; 81:1540-1545. [PMID: 29901397 DOI: 10.1021/acs.jnatprod.7b00821] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Illumination of the aromatic heptaene macrolide antifungal antibiotic candicicin D with UV light results in an isomerization of the molecule. The product formed after irradiation of the candicidin complex with UV light (λ = 365 nm), namely, iso-candicidin D, was isolated and subjected to 2D NMR studies, consisting of DQF-COSY, ROESY, TOCSY, HSQC, and HMBC experiments. The obtained spectral data unambiguously evidenced that iso-candicidin D was the all-trans isomer of the native antibiotic, and straightening of the heptaenic chromophore was the only light-induced structural change that occurred. Hence, iso-candicidin D was proclaimed to be a prototype of a novel class of polyene macrolide antifungal antibiotics: the all-trans aromatic heptaenes, containing a macrolide ring similar to that of amphotericin B.
Collapse
Affiliation(s)
- Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry , Gdańsk University of Technology , Gabriela Narutowicza Street 11/12 , 80-233 Gdańsk , Poland
| | - Tomasz Laskowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry , Gdańsk University of Technology , Gabriela Narutowicza Street 11/12 , 80-233 Gdańsk , Poland
| | - Aleksandra Bałka
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry , Gdańsk University of Technology , Gabriela Narutowicza Street 11/12 , 80-233 Gdańsk , Poland
| | - Edward Borowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry , Gdańsk University of Technology , Gabriela Narutowicza Street 11/12 , 80-233 Gdańsk , Poland
| | - Sławomir Milewski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry , Gdańsk University of Technology , Gabriela Narutowicza Street 11/12 , 80-233 Gdańsk , Poland
| |
Collapse
|
5
|
Laskowski T, Szwarc K, Szczeblewski P, Sowiński P, Borowski E, Pawlak J. Monosaccharides as Potential Chiral Probes for the Determination of the Absolute Configuration of Secondary Alcohols. JOURNAL OF NATURAL PRODUCTS 2016; 79:2797-2804. [PMID: 27782397 DOI: 10.1021/acs.jnatprod.6b00471] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herein, a new method for the elucidation of the absolute configuration of chiral secondary alcohols is proposed. This method is an alternative for a widely used approach reported by Mosher and Dale and similar methods that are based on the 1H NMR shift (δ) changes of protons that are attached to the substituents of the oxymethine carbon atom. The presented method is not based on tracking the chemical shift changes and utilizes stereochemically defined monosaccharides as chiral probes. A secondary alcohol is glycosylated, and the resulting glycoside is subjected to NMR studies. The observation of dipolar couplings between the protons of the monosaccharide moiety and the protons of the secondary alcohol moiety via the NOESY/ROESY spectra enables the determination of the absolute configuration of the oxymethine carbon atom.
Collapse
Affiliation(s)
- Tomasz Laskowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Katarzyna Szwarc
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Paweł Sowiński
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Edward Borowski
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| | - Jan Pawlak
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology , Gabriela Narutowicza Street 11/12, 80-233 Gdańsk, Poland
| |
Collapse
|
6
|
Szwarc K, Szczeblewski P, Sowiński P, Borowski E, Pawlak J. The structure, including stereochemistry, of levorin A1. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2015; 53:479-484. [PMID: 25773336 DOI: 10.1002/mrc.4229] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/09/2015] [Accepted: 01/30/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Katarzyna Szwarc
- Department of Pharmaceutical Technology and Biochemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80233, Gdańsk, Poland
| | - Paweł Szczeblewski
- Department of Pharmaceutical Technology and Biochemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80233, Gdańsk, Poland
| | - Paweł Sowiński
- Department of Pharmaceutical Technology and Biochemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80233, Gdańsk, Poland
| | - Edward Borowski
- Department of Pharmaceutical Technology and Biochemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80233, Gdańsk, Poland
| | - Jan Pawlak
- Department of Pharmaceutical Technology and Biochemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80233, Gdańsk, Poland
| |
Collapse
|
7
|
Szwarc K, Szczeblewski P, Sowiński P, Borowski E, Pawlak J. The stereostructure of candicidin D. J Antibiot (Tokyo) 2015; 68:504-10. [DOI: 10.1038/ja.2015.17] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 08/13/2014] [Accepted: 01/29/2015] [Indexed: 11/09/2022]
|