14850-85-2Relevant academic research and scientific papers
Biological and quantitative-SAR evaluations, and docking studies of (E)-N′-benzylidenebenzohydrazide analogues as potential antibacterial agents
Alam, Mohammad Sayed,Jebin, Sefat,Rahman, M. Mostafizur,Bari, Md. Latiful,Lee, Dong-Ung
, p. 350 - 361 (2016)
A series of 15 (E)-N′-benzylidenebenzohydrazide analogues were evaluated for their antimicrobial activities against eleven pathogenic and food-borne microbes, namely, S. aureus (G+), L. monocytogenes (G+), B. subtilis (G+), K. pneumonia (G-), C. sakazakii (G-), C. freundii (G-), S. enterica (G-), S. enteritidis (G-), E. coli (G-), Y. pestis (G-), and P. aeruginosa (G-). Most of the compounds exhibited selective activity against some Gramnegative bacterial strains. Of the compounds tested (3a-o), 3b and 3g were most active against C. freundii (MIC = ~19 μg mL-1). Whereas, compounds 3d, 3i, 3k and 3n exhibited MIC values ranging from 37.5 to 75 μg mL-1 against C. freundii, and compounds 3e, 3l and 3n had MIC values of ~75 μg mL-1 against K. pneumonia. Quantitative structure-antibacterial activity relationships were studied using physicochemical parameters and a good correlation was found between calculated octanol-water partition coefficients (clogP; a lipophilic parameter) and antibacterial activities. In silico screening was also performed by docking high (3b and 3g) and low (3n) activity compounds on the active site of E. coli FabH receptor, which is an important therapeutic target. The findings of these in silico screening studies provide a theoretical basis for the design and synthesis of novel benzylidenebenzohydrazide analogues that inhibit bacterial FabH.
Quantum-Chemical Studies to Approach the Antioxidant Mechanism of Nonphenolic Hydrazone Schiff Base Analogs: Synthesis, Molecular Structure, Hirshfeld and Density Functional Theory Analyses
Alam, Mohammad Sayed,Lee, Dong-Ung
, p. 682 - 691 (2015)
In the present study, five nonphenolic (E)-N′-benzylidenebenzohydrazides including three new compounds were synthesized and evaluated for their free radical scavenging activities using 2,2-diphenyl-1-picrylhydrazyl (DPPH). X-Ray analysis of a single cryst
p-(dimethylamino)benzaldehyde benzoylhydrazone monohydrate
Fun, Hoong-Kun,Lu, Zhong-Lin,Duan, Chun-Ying,Tian, Yu-Peng,You, Xiao-Zeng,Gong, Xiao-Yang,Guo, Yu-Mei
, p. 1454 - 1455 (1997)
The title compound, C16H17N3O.H2O, adopts the keto tautomeric form and the azomethine C=N double bond is in the E configuration. The crystal structure is stabilized by O-H...O, O-H...N, C-H...O and N-H...O hydro
Modulation of estrogen-related receptors subtype selectivity: Conversion of an ERRβ/γ selective agonist to ERRα/β/γ pan agonists
Avdagic, Amer,Billon, Cyrielle,Burris, Sheryl L.,Burris, Thomas P.,Elagawany, Mohamed,Elgendy, Bahaa,Goher, Shaimaa S.,Hegazy, Lamees,Sanders, Ryan,Shahien, Mohamed,Sitaula, Sadichha
, (2020/07/21)
Estrogen Related Receptors (ERRs) are key regulators of energy homeostasis and play important role in the etiology of metabolic disorders, skeletal muscle related disorders, and neurodegenerative diseases. Among the three ERR isoforms, ERRα emerged as a potential drug target for metabolic and neurodegenerative diseases. Although ERRβ/γ selective agonist chemical tools have been identified, there are no chemical tools that effectively target ERRα agonism. We successfully engineered high affinity ERRα agonism into a chemical scaffold that displays selective ERRβ/γ agonist activity (GSK4716), providing novel ERRα/β/γ pan agonists that can be used as tools to probe the physiological roles of these nuclear receptors. We identified the structural requirements to enhance selectivity toward ERRα. Molecular modeling shows that our novel modulators have favorable binding modes in the LBP of ERRα and can induce conformational changes where Phe328 that originally occupies the pocket is dislocated to accommodate the ligands in a rather small cavity. The best agonists up-regulated the expression of target genes PGC-1α and PGC-1β, which are necessary to achieve maximal mitochondrial biogenesis. Moreover, they increased the mRNA levels of PDK4, which play an important role in energy homeostasis.
New highly selective turn-on fluorescence receptor for the detection of copper (II)
Nan, Qian,Rong, Pu,Jiang, Yunbao,Yang, Rui
, p. 307 - 315 (2016/12/18)
Three new receptors (1a–c) bearing a p-dimethylaminobenzamide fluorophore have been synthesized and evaluated in terms of their fluoroionophoric properties towards various metal ions. Notably, receptors 1a and 1c exhibited dramatic fluorescent enhancement towards Cu2?+ in acetonitrile. Subsequent investigations revealed that the highly selective behavior of these receptors towards Cu2?+ could be attributed to the Cu2?+-mediated oxidative cyclization of these compounds to the corresponding 1,3,4-oxadiazoles. Solvent effects and quantum calculations indicated that 1a and 1c both possessed an intramolecular charge transfer channel, which could be obstructed by the oxidative cyclization of these receptors. Receptor 1a was successfully applied to the determination of the Cu2?+ in drug sample with a low detection limit of 2.2?×?10??8?mol?L??1.
Synthesis, oxidation and dehydrogenation of cyclic N,O- and N,S-acetals. Part III. [1,2] Transformation of N,O-acetals: 3-Acyl-1,3,4-oxadiazolines
Somogyi, Laszlo
, p. 1235 - 1246 (2008/09/18)
(Chemical Equation Presented) Various aldehyde and ketone acylhydrazones are synthesized and, under acylating conditions, cyclized into 3-acyl-1,3,4-oxadiazolines. The scope and limitations of these cyclizations and the possible side reactions (e.g. formation of the open-chain N,O-acylhydrazinocarbinols) are dissected. For the first time, simple, convenient and efficient dehydrogenations of 3-acyl-1,3,4-oxadiazolines to oxadiazoles by treatment with potassium permanganate, or more conveniently, with ammonium cerium(IV) nitrate (CAN) are presented. CAN oxidation of 2,2-disubstituted 3-acyl-1,3,4-oxadiazolines, as well as that of aldehyde diacylhydrazones (open-chain isomers of 2,5-disubstituted 3-acyl-1,3,4- oxadiazolines) regenerates the parent carbonyl compounds.
Microwave assisted syntheses of 2,5-disubstituted 1,3,4-oxadiazoles
Rostamizadeh, Shahnaz,Housaini, S.A. Ghasem
, p. 8753 - 8756 (2007/10/03)
2,5-Di-substituted 1,3,4-oxadiazoles have been synthesized from the oxidation of 1-aroyl-2-arylidene hydrazines with potassium permanganate on the surface of solid mineral support as well as in the mixture of acetone and water under microwave irradiation. 2,5-Disubstituted 1,3,4-oxadiazoles have been synthesized by oxidation of 1-aroyl-2-arylidene hydrazines with potassium permanganate on the surface of a solid mineral support as well as in mixtures of acetone and water under microwave irradiation.
Synthesis and analgesic activity of novel N-acylarylhydrazones and isosters, derived from natural safrole
Lima, Patricia C.,Lima, Lidia M.,Da Silva, Kelli Cristine M.,Leda, Paulo Henrique O.,De Miranda, Ana Luisa P.,Fraga, Carlos A. M.,Barreiro, Eliezer J.
, p. 187 - 203 (2007/10/03)
A new series of antinociceptive compounds belonging to the N- acylarylhydrazone (NAH) class were synthesized from natural safrole (7). The most analgesic derivative represented by 10f, [(4'-N,N- dimethylaminobenzylidene-3-(3',4'-methylenedioxyphenyl)propionylhydrazine], was more potent than dipyrone and indomethacin, used as standards. The NAH compounds described herein were structurally planned by molecular hybridization and classical bioisosterism strategies on previously reported analgesic NAH in order to identify the pharmacophoric contribution of the N- acylarylhydrazone moiety and investigate the structure-activity relationship (SAR) in these series. (C) 2000 Editions scientifiques et medicales Elsevier SAS.
