Design and Synthesis of 2-substituted [1,2,4]Triazolo[1,5-a]pyrimidines Tethered with Umbelliferone as Selective Carbonic Anhydrase IX and XII Inhibitors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932947" target="_blank" >RIV/60461373:22310/25:43932947 - isvavai.cz</a>

Result on the web

<a href="https://www.eurekaselect.com/article/147405" target="_blank" >https://www.eurekaselect.com/article/147405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2174/0118715206373602250318062414" target="_blank" >10.2174/0118715206373602250318062414</a>

Result language

angličtina

Original language name

Design and Synthesis of 2-substituted [1,2,4]Triazolo[1,5-a]pyrimidines Tethered with Umbelliferone as Selective Carbonic Anhydrase IX and XII Inhibitors

Original language description

Objective: This study presents the design and synthesis of a new series of human carbonic anhydrase (hCA) inhibitors based on a 5-methyl/phenyl-7-(7&apos;-oxycoumarin)-[1,2,4]triazolo[1,5-a]pyrimidine scaffold. Methods: The chemical structures of novel coumarin-based triazolopyrimidines 3a-u were confirmed after using NMR and MS analyses. Their inhibitory profiles were evaluated against a panel of five hCA isoforms. Molecular docking simulations were conducted to elucidate the binding modes of compounds 3d and 3s with hCA IX and XII isoforms. Selected derivatives 3d and 3g were tested for their antiproliferative effects on the medulloblastoma HD-MB03 and the glioblastoma U87MG cell lines. Additionally, compounds 3d and 3g were evaluated alone or in combination with cisplatin (cis-Pt) for their ability to induce apoptosis in HD-MB03 cells. Results: In vitro kinetic studies demonstrated that all 5-methyl triazolopyrimidine derivatives (3a-r) selectively inhibited the tumor-associated hCA isoforms (hCA IX and XII), with K-I values ranging from 0.75 to 10.5 mu M, while hCA I, II, IV isoforms were not significantly inhibited (K(I)s &gt; 100 mu M). Compound 3d emerged as the most potent and selective inhibitor, with K-Is of 0.92 and 0.75 mu M for hCA IX and XII, respectively. This derivative significantly suppressed cell proliferation in human brain tumor cell lines, particularly HD-MB03, when it was studied for its adjuvant effects in combination with cisplatin. Conclusion: In this study, we have identified compound 3d as a selective inhibitor of the isoforms hCA IX and XII, showing minimal inhibition over hCA I, II, and IV isoenzymes (selectivity indices &gt; 100). Its moderate inhibitory effects on hCA IX and XII at submicromolar levels were paralleled by significant antiproliferative activity against HD-MB03 cells. These findings underscore the potential of compound 3d as a promising candidate for further therapeutic development, especially in combination with clinically used chemotherapeutic agents.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30107 - Medicinal chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Anti-Cancer Agents in Medicinal Chemistry

ISSN

1871-5206

e-ISSN

1875-5992

Volume of the periodical

25

Issue of the periodical within the volume

18

Country of publishing house

AE - UNITED ARAB EMIRATES

Number of pages

18

Pages from-to

1429-1446

UT code for WoS article

001471000900001

EID of the result in the Scopus database

2-s2.0-105007933890