Keshk RM, Izzularab BM. Design, Synthesis and Biological Evaluation of Cyanopyridines, Pyridopyrazolopyrimidines and Pyridopyrazolotriazines as Potential Anticancer Agents.
Curr Org Synth 2020;
18:483-492. [PMID:
33372879 DOI:
10.2174/1570179417666201229163045]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/04/2020] [Accepted: 11/10/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND
The continuous need for new anticancer drugs is never-ending task due to cancer resistance to the existing drugs.
OBJECTIVE
This article aimed to design, synthesis, characterization, and anticancer evaluation of cyanopyridines, pyridopyrazolopyrimidines and pyridopyrazolotriazines.
METHODS
Anticancer activity of the synthesized compounds was determined using MTT assay against three cancer cell lines, namely liver cancer cell line (HepG-2), pancreatic cancer cell line (PANC-1), non-small lung cancer cell line (A-549) and normal fibroblast.
RESULTS AND DISCUSSION
A series of 3-cyanopyridines (2a,b, 4, 5, 9), pyridopyrimidine (10), pyridopyrazolopyrimidines (11a-c, 12a,b, 18), pyrazolopyridine salt (13) and pyridopyrazolotriazines (16a,b) were synthesized from 3-cyano-4,6-dimethyl-2-pyridone. The synthesized compounds were evaluated in vitro for their anticancer activity and their chemical structures were determined by elemental analysis and spectroscopic data.
CONCLUSION
Some of the synthesized compounds showed remarkable anticancer activities, especially 11a exhibited superior potency to the reference drug cisplatin against A-549 (IC50 = 9.24 μg mL-1 compared to 11.76 μg mL-1 for reference drug) and was found to be safe (IC50 = 66 μg mL-1) for normal fibroblast. Furthermore, compound 16a displayed the highest activity among the tested compounds against HepG-2 (IC50 = 6.45 μg mL-1 equipotent to cisplatin) with the highest safety profile for normal fibroblast (IC50=113.97 μg mL-1).
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