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Multifunctional Isosteric Pyridine Analogs-Based 2-Aminothiazole: Design, Synthesis, and Potential Phosphodiesterase-5 Inhibitory Activity
- Source :
- Molecules, Vol 26, Iss 902, p 902 (2021), Molecules, Volume 26, Issue 4
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- The elaboration of new small molecules that target phosphodiesterase enzymes (PDEs), especially those of type 5 (PDE5), is an interesting and emerging topic nowadays. A new series of heterocycle-based aminothiazoles were designed and synthesized from the key intermediate, 3-oxo-N-(thiazol-2-yl)butanamide (a PDE5 inhibitor that retains its amidic function), as an essential pharmacophoric moiety. The PDE5 inhibitors prevent the degradation of cyclic guanosine monophosphate, thereby causing severe hypotension as a marked side effect. Hence, an in vivo testing of the target compounds was conducted to verify its relation with arterial blood pressure. Utilizing sildenafil as the reference drug, Compounds 5, 10a, and 11b achieved 100% inhibitions of PDE5 without significantly lowering the mean arterial blood pressures (115.95 ± 2.91, 110.3 ± 2.84, and 78.3 ± 2.57, respectively). The molecular docking study revealed that the tested compounds exhibited docking poses that were similar to that of sildenafil (exploiting the amide functionality that interacted with GLN:817:A). The molecular shape and electrostatic similarity revealed a comparable physically achievable electrostatic potential with the reference drug, sildenafil. Therefore, these concomitant results revealed that the tested compounds exerted sildenafil-like inhibitory effects (although without its known drawbacks) on blood circulation, thus suggesting that the tested compounds might represent a cornerstone of beneficial drug candidates for the safe treatment for erectile dysfunction.
- Subjects :
- OpenEye
Side effect
Sildenafil
Pyridines
erectile dysfunction
sildenafil
Pharmaceutical Science
Pharmacology
010402 general chemistry
phosphodiesterase 5
01 natural sciences
Article
Analytical Chemistry
lcsh:QD241-441
chemistry.chemical_compound
Structure-Activity Relationship
lcsh:Organic chemistry
In vivo
Drug Discovery
Humans
Physical and Theoretical Chemistry
Cyclic guanosine monophosphate
Cyclic GMP
Cyclic Nucleotide Phosphodiesterases, Type 5
010405 organic chemistry
Organic Chemistry
Phosphodiesterase
Phosphodiesterase 5 Inhibitors
Small molecule
0104 chemical sciences
Thiazoles
2-aminothiazoles
chemistry
Chemistry (miscellaneous)
Docking (molecular)
cGMP-specific phosphodiesterase type 5
Drug Design
docking
Molecular Medicine
Subjects
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 26
- Issue :
- 902
- Database :
- OpenAIRE
- Journal :
- Molecules
- Accession number :
- edsair.doi.dedup.....4a90e37a5d3d38451c89762f42070762