Synthesis, docking studies and in vitro evaluation of novel chalcones as potent inhibitors of phosphodiesterase 5 from human platelets and 5A from bovine recombinant
A series of new nitric oxide donor chalcone moieties were synthesized and evaluated for phosphodiesterase 5 (PDE 5) and 5A (PDE 5A) inhibition potential from human plasma and bovine recombinant, respectively. Molecular docking showed an excellent binding interaction of the synthesised compounds with...
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Published in | New journal of chemistry Vol. 42; no. 17; pp. 14365 - 14385 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
CAMBRIDGE
Royal Soc Chemistry
2018
Royal Society of Chemistry |
Subjects | |
Online Access | Get full text |
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Summary: | A series of new nitric oxide donor chalcone moieties were synthesized and evaluated for phosphodiesterase 5 (PDE 5) and 5A (PDE 5A) inhibition potential from human plasma and bovine recombinant, respectively. Molecular docking showed an excellent binding interaction of the synthesised compounds with the receptors. The synthesis of chalcone intermediate
i
was carried out by reacting substituted aldehydes and acetophenones on the basis of the Claisen-Schmidt condensation reaction. A nitration reaction was carried out to obtain a substituted chalcone with phenyl nitrate and nitrate esters as the final product. The inhibitory potency of the synthesized compounds was evaluated against PDE 5 from human platelets and PDE 5A from bovine recombinant and compared with Tadalafil and a standard inhibitor. Compounds
AI7
,
B5
,
B7
,
E7
and
E8
containing acetyl, nitro, carboxy methyl, hydroxy methyl functionalities exhibit a marked inhibitory effect against human platelet PDE 5. Compounds
B2
,
B4
,
B5
,
D4
,
D6
and
E6
containing nitro, fluorine, amino, methyl functionalities exhibit a significant inhibition of recombinant bovine PDE 5A. Compound
AI7
containing the phenyl nitrate moiety and acetyl functionalities on chalcone showed 1.197 ± 3.38 μM inhibitory potency against human platelet PDE 5. Compound
B2
containing amide nitrate ester and nitro functionalities on chalcone showed 1.241 ± 3.68 μM inhibitory potency against recombinant bovine PDE 5A. The biocompatibility of the synthesized compounds was checked by the
in vitro
haemolysis assay. All the tested compounds were observed to be non-haemolytic. Compound
B2
was tested for an
in vitro
bacterial reverse mutation test, and found to be non-mutagenic.
Chalcones with a nitric oxide (NO) donating scaffold and a variety of substituents were synthesized. A docking study was performed and molecules were evaluated for
in vitro
phosphodiesterase 5 and 5A inhibitory potency. |
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ISSN: | 1144-0546 1369-9261 |
DOI: | 10.1039/c8nj02077a |