28769-06-4Relevant academic research and scientific papers
Design, synthesis, crystal structure, and herbicidal activity of novel pyrrolidine-2,4-dione derivatives incorporating an alkyl ether pharmacophore with natural tetramic acids as lead compounds
Chen, Min,Geng, Chun-Wen,Han, Ling,Liu, Yu,Yu, Yong-Kai,Lu, Ai-Min,Yang, Chun-Long,Li, Guo-Hua
, p. 5621 - 5630 (2021/04/06)
In order to discover green herbicides with novel molecular scaffolds, natural tetramic acids were used as lead compounds to design and synthesize four pyrrolidine-2,4-dione derivatives incorporating a chainlike alkoxyalkyl moiety (4a-4d) and nineteen pyrrolidine-2,4-dione derivatives incorporating a substituted phenoxyethyl moiety (10a-10s)viasubstitution, acylation, cyclization, and acidification reactions. The synthesized target compounds were confirmed by FT-IR,1H NMR,13C NMR and HRMS spectral analyses. The single-crystal structure of compound10awas analyzed by X-ray diffraction, which revealed that the 1-hydroxyethylidene group links the third position of the pyrrolidine heterocycle through a double bond with theZ-configuration. The herbicidal activity was evaluated using barnyard grass (Echinochloa crus-galli) and rape (Brassica campestris) as model plants by a Petri dish culture method. Most target compounds were found to possess moderate to good inhibitory activities against the plant growth at 100 μg mL?1. Among them, the compounds10qand10nshowed the highest herbicidal activities against the roots of barnyard grass and rape seedlings with the corresponding inhibition rates of 65.6% and 84.0%, respectively. This result indicated that pyrrolidine-2,4-dione derivatives incorporating a substituted phenoxyethyl moiety are worthy of further structural optimization.
Discovery of Novel pERK1/2- or β-Arrestin-Preferring 5-HT1AReceptor-Biased Agonists: Diversified Therapeutic-like versus Side Effect Profile
Sniecikowska, Joanna,Gluch-Lutwin, Monika,Bucki, Adam,Wi?ckowska, Anna,Siwek, Agata,Jastrzebska-Wiesek, Magdalena,Partyka, Anna,Wilczyńska, Daria,Pytka, Karolina,Latacz, Gniewomir,Przejczowska-Pomierny, Katarzyna,Wyska, El?bieta,Weso?owska, Anna,Paw?owski, Maciej,Newman-Tancredi, Adrian,Kolaczkowski, Marcin
, p. 10946 - 10971 (2020/11/09)
Novel 1-(1-benzoylpiperidin-4-yl)methanamine derivatives with high affinity and selectivity for serotonin 5-HT1A receptors were obtained and tested in four functional assays: ERK1/2 phosphorylation, adenylyl cyclase inhibition, calcium mobilization, and β-arrestin recruitment. Compounds 44 and 56 (2-methylaminophenoxyethyl and 2-(1H-indol-4-yloxy)ethyl derivatives, respectively) were selected as biased agonists with highly differential "signaling fingerprints"that translated into distinct in vivo profiles. In vitro, 44 showed biased agonism for ERK1/2 phosphorylation and, in vivo, it preferentially exerted an antidepressant-like effect in the Porsolt forced swimming test in rats. In contrast, compound 56 exhibited a first-in-class profile: it preferentially and potently activated β-arrestin recruitment in vitro and potently elicited lower lip retraction in vivo, a component of "serotonergic syndrome". Both compounds showed promising developability properties. The presented 5-HT1A receptor-biased agonists, preferentially targeting various signaling pathways, have the potential to become drug candidates for distinct central nervous system pathologies and possessing accentuated therapeutic activity and reduced side effects.
Synthesis and Antichlamydial Activity of Molecules Based on Dysregulators of Cylindrical Proteases
Seleem, Mohamed A.,Rodrigues De Almeida, Nathalia,Chhonker, Yashpal Singh,Murry, Daryl J.,Guterres, Zaira Da Rosa,Blocker, Amanda M.,Kuwabara, Shiomi,Fisher, Derek J.,Leal, Emilse S.,Martinefski, Manuela R.,Bollini, Mariela,Monge, María Eugenia,Ouellette, Scot P.,Conda-Sheridan, Martin
, p. 4370 - 4387 (2020/05/22)
Chlamydia trachomatis is the most common sexually transmitted bacterial disease globally and the leading cause of infertility and preventable infectious blindness (trachoma) in the world. Unfortunately, there is no FDA-approved treatment specific for chlamydial infections. We recently reported two sulfonylpyridines that halt the growth of the pathogen. Herein, we present a SAR of the sulfonylpyridine molecule by introducing substituents on the aromatic regions. Biological evaluation studies showed that several analogues can impair the growth of C. trachomatis without affecting host cell viability. The compounds did not kill other bacteria, indicating selectivity for Chlamydia. The compounds presented mild toxicity toward mammalian cell lines. The compounds were found to be nonmutagenic in a Drosophila melanogaster assay and exhibited a promising stability in both plasma and gastric fluid. The presented results indicate this scaffold is a promising starting point for the development of selective antichlamydial drugs.
Identification of N-Benzyl 3,5-Dinitrobenzamides Derived from PBTZ169 as Antitubercular Agents
Li, Linhu,Lv, Kai,Yang, Yupeng,Sun, Jingquan,Tao, Zeyu,Wang, Apeng,Wang, Bin,Wang, Hongjian,Geng, Yunhe,Liu, Mingliang,Guo, Huiyuan,Lu, Yu
, p. 741 - 745 (2018/07/05)
A series of benzamide scaffolds were designed and synthesized by the thiazinone ring opening of PBTZ169, and N-benzyl 3,5-dinitrobenzamides were finally identified as anti-TB agents in this work. 3,5-Dinitrobenzamides D5, 6, 7, and 12 exhibit excellent in vitro activity against the drug susceptive Mycobacterium tuberculosis H37Rv strain (MIC: 0.0625 μg/mL) and two clinically isolated multidrug-resistant strains (MIC 0.016-0.125 μg/mL). Compound D6 displays acceptable safety and better pharmacokinetic profiles than PBTZ169, suggesting its promising potential to be a lead compound for future antitubercular drug discovery.
Identification of N-(2-Phenoxyethyl)imidazo[1,2-a]pyridine-3-carboxamides as New Antituberculosis Agents
Wu, Zhaoyang,Lu, Yu,Li, Linhu,Zhao, Rui,Wang, Bin,Lv, Kai,Liu, Mingliang,You, Xuefu
supporting information, p. 1130 - 1133 (2016/12/16)
A series of imidazo[1,2-a]pyridine carboxamides (IPAs) bearing an N-(2-phenoxyethyl) moiety was designed and synthesized as new antitubercular agents. Seven 2,6-dimethyl IPAs demonstrated excellent in vitro activity (MIC: 0.025-0.054 μg/mL) against the drug susceptive H37Rv strain and two clinically isolated multidrug-resistant Mycobacterium tuberculosisstrains. Compound 10j displayed acceptable safety and pharmacokinetic properties, opening a new direction for further development.
SUBSTITUTED 2H-[1,2,4]TRIAZOLO[4,3-A]PYRAZINES AS GSK-3 INHIBITORS
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Page/Page column 33, (2010/02/11)
The invention relates to compounds of formula (I) prodrugs thereof, and the pahrmaceutically acceptabel salts of the compounds and prodrugs, wherein Ra, Rb, R1 and R2 are as defined herein; pharmaceutical compositions thereof; and uses thereof.
Melanin-concentrating hormone antagonist
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, (2008/06/13)
A melanin-concentrating hormone antagonist comprising a compound of the formula: wherein R is hydrogen atom or a cyclic group which may be substituted; X is a bond or a spacer having a main chain of 1 to 10 atoms; Y is a spacer having a main chain of 1 to 6 atoms; ring A is benzene ring which may be further substituted; ring B is a 5- to 9-membered nitrogen-containing non-aromatic heterocyclic ring which may be further substituted; R1 and R2 are the same or different and are hydrogen atom, a hydrocarbon group which may be substituted or a heterocyclic group which may be substituted; or R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or a salt thereof is useful as a preventive or therapeutic agent for obesity, etc.
