Ligand-based designing of DPP-4 inhibitors via hybridization; synthesis, docking, and biological evaluation of pyridazine-acetohydrazides
作者:Manisha Nidhar、Vipin Kumar、Archisman Mahapatra、Priya Gupta、Brijesh Kumar Yadav、Rahul Kumar Singh、Ashish Kumar Tewari
DOI:10.1007/s11030-022-10577-4
日期:——
A series of novel pyridazine-acetohydrazide hybrids were designed, synthesized, and evaluated for their in vitro and in vivo antihyperglycemic activity. In this context, pyridazine-acetohydrazides (6a–6p) were synthesized by coupling substituted aldehyde with 2-(5-cyano-6-oxo-3,4-diphenylpyridazine-1-6H-yl) acetohydrazide, which was prepared via the reaction of pyridazine ester with hydrazine hydrate. The molecular docking study was carried out to examine the binding affinities and interaction of designed compounds against the DPP-4 enzyme. Compounds 6e, 6f, 6l, and 6n exhibited interaction with active residue. In silico ADMET properties, and toxicity studies corroborated that compounds were found to have good bioavailability and less toxic. The synthesized compounds were further estimated for in vitro DPP-4 activity. Compounds 6e and 6l were found as the most effective DPP-4 inhibitor in this series with IC50 values (6.48, 8.22 nM) when compared with sitagliptin (13.02 nM). According to the toxicity assay compound, 6l showed very less toxicity at a higher concentration so further selected for the in vivo antihyperglycemic activity.
研究人员设计、合成了一系列新型哒嗪-乙酰肼杂化物,并对其体内外抗高血糖活性进行了评估。在此背景下,通过将取代醛与 2-(5-氰基-6-氧代-3,4-二苯基哒嗪-1-6H-基)乙酰肼偶联合成了哒嗪乙酰肼(6a-6p),后者是通过哒嗪酯与水合肼反应制备的。分子对接研究考察了所设计化合物与 DPP-4 酶的结合亲和力和相互作用。化合物 6e、6f、6l 和 6n 表现出与活性残基的相互作用。硅学 ADMET 特性和毒性研究证实,化合物具有良好的生物利用度和较低的毒性。对合成的化合物进一步进行了体外 DPP-4 活性评估。与西他列汀(13.02 nM)相比,化合物 6e 和 6l 的 IC50 值(6.48、8.22 nM)是该系列中最有效的 DPP-4 抑制剂。根据毒性测定,6l 在较高浓度下毒性极低,因此被进一步选作体内抗高血糖活性化合物。