Synthesis, anticancer activity and molecular docking studies of novel pyrido[1,2-a]pyrimidin-4-one derivatives

Abstract

A series of novel triazolothione, thiadiazole, triazole, and oxadiazole-functionalized pyrido[1,2-a]pyrimidin-4-ones 6a–6l and 7a–7f were prepared, starting from pyridine derivatives 1a and 1b. All the compounds 6a–6l and 7a–7f were screened against four human cancer cell lines (HeLa, COLO205, Hep G2, and MCF 7), among which compounds 6d, 6h, 6j, 7b, and 7e showed promising anticancer activity. Molecular docking studies showed good binding energy and exhibited interactions and better lower free energy values, indicating more thermodynamically favored interaction.

Graphical Abstract

Keywords:

• Anticancer activity
• molecular docking studies
• pyrido[1,2-a]pyrimidin-4-one
• thiadiazole
• triaxolothione
• triazole

Additional information

Funding

The authors acknowledge the financial support of National Natural Science Foundation of China [201801099], Senior Talent Foundation of Jiangsu University [13JDG062], and Jiangsu Postdoctoral Foundation [1601034B].