1,2,3-triazenes and 1,2,3-triazoles as antileishmanial, antitrypanosomal, and antiplasmodial agents
Trypanosomiasis, leishmaniasis, and malaria are tropical diseases that affect poor populations and the commonly-used drugs are toxic and can be subject to drug resistance. There is, therefore, an urgent need to find effective therapeutic agents accessible to these populations that bear the brunt of...
Saved in:
Published in | Medicinal chemistry research Vol. 32; no. 1; pp. 158 - 164 |
---|---|
Main Authors | , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
2023
Springer Nature B.V Springer Verlag |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Trypanosomiasis, leishmaniasis, and malaria are tropical diseases that affect poor populations and the commonly-used drugs are toxic and can be subject to drug resistance. There is, therefore, an urgent need to find effective therapeutic agents accessible to these populations that bear the brunt of morbidity and mortality. In vitro activities of seven 1,2,3-triazenes (
1a
,
1b
,
2a
,
2b
,
3a
,
3b
, and
4
) and five 1,2,3-triazoles (
5a
,
5b
,
6a
,
6b
, and
7
) were evaluated against
Trypanosoma brucei gambiense
,
Leishmania donovani
, and
Plasmodium falciparum
. The 1,2,3-triazenes showed better activities than 1,2,3-triazoles against
Leishmania donovani
:
2b
was the most effective against axenic amastigote forms of
Leishmania donovani
LV9 (IC
50
= 0.89 ± 0.41 μM) and the intramacrophage-amastigote forms (IC
50
= 0.99 ± 0.36 μM) with a selectivity index >100. The best trypanocidal activities against
Trypanosoma brucei gambiense
was observed with the 1,2,3-triazene
3a
(
IC
50
= 3.45 ± 0.09 μM) and the triazole
7
, an analog of the cholesterol side chain (IC
50
= 3.99 ± 0.23 μM). The most interesting result against
Plasmodium falciparum
3D7 strain was obtained with
5b
(IC
50
= 1.29 ± 0.15 μM) with a selectivity index >77. This study revealed that 1,2,3-triazenes and 1,2,3-triazoles show antiparasitic potential that could lead to a new class of drugs.
Graphical abstract |
---|---|
ISSN: | 1054-2523 1554-8120 |
DOI: | 10.1007/s00044-022-02994-9 |