About: Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study

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About: Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study Goto Sponge NotDistinct Permalink

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study
Creator	Wang, Yilin Jin, G Jin, Guofan Xiao, Fuyan
source	Elsevier; Medline; PMC
abstract	The structural modification of quinolone derivatives has been a hot spot in recent years, especially the modification of the N-1 position, which is the part that this article focuses on. In this paper, series of synthesized quinoline quaternary ammonium salts with odd and even carbon number alkyl groups in N-1 position were used to explain the influence of the alkyl side chain on activity. With respect to all the recently synthesized twenty products, the biological activity results exhibited significant antitumor and antibacterial activity with obvious differences in the target alkyliodine substituted compounds and the antibacterial activities apparently had the prominent odd-carbon number predominance. Compound 8-((4-(benzyloxy)phenyl)amino)-7-(ethoxycarbonyl)-5-propyl-[1,3]dioxolo[4,5-g]quinolin-5-ium (4d) was found to be the most potent derivative with IC(50) values of 4±0.88, 4±0.42, 14±1.96, and 32±3.66 against A-549, Hela, SGC-7901, and L-02 cells, respectively, stronger than the positive control 5-FU and MTX. Furthermore, it had the most potent bacterial inhibitory activity of MIC value against Escherichia coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739) at 3.125 nmol mL(−1). With respect to molecular simulations, in order to illustrate the possible mechanism of the difference between the series of compounds in the even or odd carbon chain alkyliodine substitution, this paper simulated the conceivable mode and explained the main interactions. Finally, we could find that the position and proportion of hydrogen bonds and other interactions in each series were regarded as the main reasons for this difference in activity.
has issue date	2020-07-09(xsd:dateTime)
bibo:doi	10.1016/j.molstruc.2020.128869
bibo:pmid	32834112
has license	no-cc
sha1sum (hex)	b6f77e50a5926b1b4ac50e374df5a368e9e02967
schema:url	https://doi.org/10.1016/j.molstruc.2020.128869
resource representing a document's title	Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study
has PubMed Central identifier	PMC7347330
has PubMed identifier	32834112
schema:publication	J Mol Struct
resource representing a document's body	covid:b6f77e50a5926b1b4ac50e374df5a368e9e02967#body_text
is schema:about of	named entity 'Please' named entity 'inhibition' named entity 'molecular docking' named entity 'derivatives' named entity 'doi' »more»

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