1
|
Kaiser MM, Poštová-Slavětínská L, Dračínský M, Lee YJ, Tian Y, Janeba Z. Synthesis and biological properties of prodrugs of (S)-3-(adenin-9-yl)-2-(phosphonomethoxy)propanoic acid. Eur J Med Chem 2016; 108:374-380. [PMID: 26706348 DOI: 10.1016/j.ejmech.2015.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 07/15/2015] [Accepted: 12/07/2015] [Indexed: 01/22/2023]
Abstract
The lack of antiviral activity of recently described (S)-3-(adenin-9-yl)-2-(phosphonomethoxy)propanoic acid, or (S)-CPMEA in brief, has been speculated to possibly be due to the increased hydrophilicity of the molecule and, thus, by its limited cellular permeability. Efficient syntheses of novel lipophilic prodrugs of (S)-CPMEA masking either the carboxylic group or preferably both the phosphonate and carboxylic moieties, have been developed in order to increase bioavailability of the parent compound. Two prodrugs of (S)-CPMEA, namely phosphonate bis-amidate 15 and phenyloxy amidate 16, exhibited pan-genotypic anti-HCV activity at submicromolar concentrations.
Collapse
Affiliation(s)
- Martin Maxmilian Kaiser
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610, Prague 6, Czech Republic
| | - Lenka Poštová-Slavětínská
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610, Prague 6, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610, Prague 6, Czech Republic
| | - Yu-Jen Lee
- Gilead Sciences, Inc., Foster City, CA, 94404, USA
| | - Yang Tian
- Gilead Sciences, Inc., Foster City, CA, 94404, USA
| | - Zlatko Janeba
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610, Prague 6, Czech Republic.
| |
Collapse
|
2
|
Zouharova D, Lipenska I, Fojtikova M, Kulich P, Neca J, Slany M, Kovarcik K, Turanek-Knotigova P, Hubatka F, Celechovska H, Masek J, Koudelka S, Prochazka L, Eyer L, Plockova J, Bartheldyova E, Miller AD, Ruzek D, Raska M, Janeba Z, Turanek J. Antiviral activities of 2,6-diaminopurine-based acyclic nucleoside phosphonates against herpesviruses: In vitro study results with pseudorabies virus (PrV, SuHV-1). Vet Microbiol 2016; 184:84-93. [PMID: 26854349 DOI: 10.1016/j.vetmic.2016.01.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/13/2016] [Accepted: 01/14/2016] [Indexed: 12/22/2022]
Abstract
Pseudorabies virus (PrV), a causative agent of Aujeszky's disease, is deadly to most mammals with the exception of higher primates and men. This disease causes serious economic loses among farm animals, especially pigs, yet many European countries are today claimed to be Aujeszky's disease free because of the discovery of an efficient vaccination for pigs. In reality, the virus is still present in wild boar. Current vaccines are neither suitable for dogs nor are there anti-PrV drugs approved for veterinary use. Therefore, the disease still represents a high threat, particularly for expensive hunting dogs that can come into close contact with infected boars. Here we report on the anti-PrV activities of a series of synthetic diaminopurine-based acyclic nucleoside phosphonate (DAP-ANP) analogues. Initially, all synthetic DAP-ANPs under investigation are shown to exhibit minimal cytotoxicity by MTT and XTT tests (1-100μM range). Thereafter in vitro infection models are established using PrV virus SuHV-1, optimized on PK-15 and RK-13 cell lines. Out of the six DAP-ANP analogues tested, analogue VI functionalized with a cyclopropyl group on the 6-amino position of the purine ring proves the most effective antiviral DAP-ANP analogue against PrV infection, aided by sufficient hydrophobic character to enhance bioavailability to its cellular target viral DNA-polymerase. Four other DAP-ANP analogues with functional groups introduced to the C2'position are shown ineffective against PrV infection, even with favourable hydrophobic properties. Cidofovir(®), a drug approved against various herpesvirus infections, is found to exert only low activity against PrV in these same in vitro models.
Collapse
Affiliation(s)
- Darina Zouharova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Ivana Lipenska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Martina Fojtikova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Jiri Neca
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Michal Slany
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Kamil Kovarcik
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | | | - Frantisek Hubatka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Hana Celechovska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Josef Masek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Stepan Koudelka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; International Clinical Research Center, St. Annés University Hospital, Brno, Czech Republic
| | - Lubomir Prochazka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Ludek Eyer
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Jana Plockova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Eliska Bartheldyova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Andrew D Miller
- King's College London, Institute of Pharmaceutical Science, London, United Kingdom, and GlobalAcorn Ltd., London, United Kingdom
| | - Daniel Ruzek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, and Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Milan Raska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; Palacky University of Olomouc, Faculty of Medicine, Department of Immunology, Czech Republic
| | - Zlatko Janeba
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, Czech Republic
| | - Jaroslav Turanek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic.
| |
Collapse
|
6
|
Jansa P, Hradil O, Baszczyňski O, Dračínský M, Klepetářová B, Holý A, Balzarini J, Janeba Z. An efficient microwave-assisted synthesis and biological properties of polysubstituted pyrimidinyl- and 1,3,5-triazinylphosphonic acids. Tetrahedron 2011; 68:865-871. [PMID: 32287424 PMCID: PMC7125588 DOI: 10.1016/j.tet.2011.11.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 10/26/2011] [Accepted: 11/14/2011] [Indexed: 11/29/2022]
Abstract
Polysubstituted pyrimidinylphosphonic and 1,3,5-triazinylphosphonic acids with potential biological properties were prepared in high yields by the microwave-assisted Michaelis-Arbuzov reaction of trialkyl phosphite with the corresponding halopyrimidines and halo-1,3,5-triazines, respectively, followed by the standard deprotection of the phosphonate group using TMSBr in acetonitrile. 4,6-Diamino-5-chloropyrimidin-2-ylphosphonic acid (7a) was found to exhibit a weak to moderate anti-influenza activity (28-50 μM) and may represent a novel hit for further SAR studies and antiviral improvement.
Collapse
Affiliation(s)
- Petr Jansa
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Ondřej Hradil
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Ondřej Baszczyňski
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Antonín Holý
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| | - Jan Balzarini
- Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Zlatko Janeba
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, CZ-16610 Prague 6, Czech Republic
| |
Collapse
|