» Articles » PMID: 38611732

Serendipitous Identification of Azine Anticancer Agents Using a Privileged Scaffold Morphing Strategy

Abstract

The use of privileged scaffolds as a starting point for the construction of libraries of bioactive compounds is a widely used strategy in drug discovery and development. Scaffold decoration, morphing and hopping are additional techniques that enable the modification of the chosen privileged framework and better explore the chemical space around it. In this study, two series of highly functionalized pyrimidine and pyridine derivatives were synthesized using a scaffold morphing approach consisting of triazine compounds obtained previously as antiviral agents. Newly synthesized azines were evaluated against lymphoma, hepatocarcinoma, and colon epithelial carcinoma cells, showing in five cases acceptable to good anticancer activity associated with low cytotoxicity on healthy fibroblasts. Finally, ADME in vitro studies were conducted on the best derivatives of the two series showing good passive permeability and resistance to metabolic degradation.

References
1.
Josephitis C, Nguyen H, McNally A . Late-Stage C-H Functionalization of Azines. Chem Rev. 2023; 123(12):7655-7691. PMC: 10631472. DOI: 10.1021/acs.chemrev.2c00881. View

2.
Hu Y, Stumpfe D, Bajorath J . Recent Advances in Scaffold Hopping. J Med Chem. 2016; 60(4):1238-1246. DOI: 10.1021/acs.jmedchem.6b01437. View

3.
Baumann M, Baxendale I . An overview of the synthetic routes to the best selling drugs containing 6-membered heterocycles. Beilstein J Org Chem. 2013; 9:2265-319. PMC: 3817479. DOI: 10.3762/bjoc.9.265. View

4.
Kounde C, Yeo H, Wang Q, Wan K, Dong H, Karuna R . Discovery of 2-oxopiperazine dengue inhibitors by scaffold morphing of a phenotypic high-throughput screening hit. Bioorg Med Chem Lett. 2017; 27(6):1385-1389. DOI: 10.1016/j.bmcl.2017.02.005. View

5.
Cesarini S, Vicenti I, Poggialini F, Secchi M, Giammarino F, Varasi I . Privileged Scaffold Decoration for the Identification of the First Trisubstituted Triazine with Anti-SARS-CoV-2 Activity. Molecules. 2022; 27(24). PMC: 9782877. DOI: 10.3390/molecules27248829. View