Synthesis of Novel Pyrazole Derivatives and Their Tumor Cell Growth Inhibitory Activity
Overview
Affiliations
To find novel antitumor agents, a series of 1-benzofuro[3,2-]pyrazole derivatives were designed and synthesized. The treatment of 6-methoxybenzofuran-3(2)-one with LiHMDS in anhydrous tetrahydrofuran (THF) followed by reaction with 3-substitued phenyl isothiocyanate gave the thioamide intermediates, which underwent condensation with hydrazine monohydrate in dioxane/EtOH (1:1) to provide the benzofuropyrazole derivatives ⁻ as well as the unexpected pyrazole derivatives ⁻. In tumor cell growth inhibitory assay, all the benzofuropyrazole derivatives were not active against the breast tumor MCF-7 cell, only was highly active and more potent than ABT-751 against the leukemia K562 (GI = 0.26 μM) and lung tumor A549 cells (GI = 0.19 μM), while other benzofuropyrazoles showed very weak inhibitory activity. In contrast, the pyrazoles were in general more potent than the benzofuropyrazoles ⁻. Compound exhibited a similar tendency to that of with high potency against K562 and A549 cells but weak effects on MCF-7 cell. Both pyrazoles and exhibited high inhibitory activities against K562, MCF-7 and A549 cells. The most active compound was much more potent than ABT-751 against K562 and A549 cells with GI values of 0.021 and 0.69 M, respectively. Moreover, was identified as a novel tubulin polymerization inhibitor with an IC of 7.30 M.
Recent Advances in the Development of Pyrazole Derivatives as Anticancer Agents.
Zhang Y, Wu C, Zhang N, Fan R, Ye Y, Xu J Int J Mol Sci. 2023; 24(16).
PMID: 37628906 PMC: 10454718. DOI: 10.3390/ijms241612724.
Ion G, Olaru O, Nitulescu G, Olaru I, Tsatsakis A, Burykina T Oncol Rep. 2020; 44(2):589-598.
PMID: 32627025 PMC: 7336486. DOI: 10.3892/or.2020.7636.
Design and Synthesis of Organic Molecules as Antineoplastic Agents.
Boga C, Micheletti G Molecules. 2020; 25(12).
PMID: 32570759 PMC: 7356313. DOI: 10.3390/molecules25122808.
Swanepoel B, Nitulescu G, Olaru O, Venables L, van de Venter M Int J Mol Sci. 2019; 20(22).
PMID: 31703393 PMC: 6888365. DOI: 10.3390/ijms20225559.