Design, Synthesis, and Antimicrobial Activity of Novel
Fluorine-Containing Imidazolones
作者:N. C. Desai、K. R. Wadekar、H. K. Mehta、U. P. Pandit
DOI:10.1134/s1070428021060142
日期:2021.6
Abstract A simple synthetic protocol have been developed for the preparation of novel N-(4-benzylidene-5-oxo-2-phenyl-4,5-dihydro-1H-imidazol-1-yl)-N′-phenylthiourea derivatives by the reaction of 4-benzylidene-2-phenyl-4,5-dihydro-1,3-oxazol-5-ones with N-(3-chloro-4-fluorophenyl)- and N-[3-(trifluoromethyl)phenyl)hydrazinecarbothioamides. The synthesized imidazolones have been characterized by using
Microwave-assisted efficient synthesis of azlactones using zeolite NaY as a reusable heterogeneous catalyst
作者:Mohammad Ali Bodaghifard、Hassan Moghanian、Akbar Mobinikhaledi、Fatemeh Esmaeilzadeh
DOI:10.1080/15533174.2016.1212242
日期:2017.6.3
azlactones in the presence of zeolite NaY has been reported. This heterogeneouscatalyst was used for efficient synthesis of azlactone derivatives with Ac2O as a condensing agent under microwave irradiation and solvent-free conditions. The present method offers the advantages of good yields, short reaction time, simple work-up, and catalystreusability, which makes this method mild and eco-friendly.
A series of five new 1-(substituted phenyl)-2-phenyl-4-(substituted benzylidine)imidazole-5-one derivatives (or) 5(4H)-imidazolones have been synthesized adopting SiO2, Al2O3-90 and Y-faujasite (Y-H type) zeolite as catalysts. These compounds were assayed for their antifungal activity on three different selected phytopathogens which disparately affects the Jowar crop (Sorghum vulgare) of poaceae family. Among the screened target molecules, compound 18 exhibited potent inhibitory activity compared to the standard drug bavistine, which is worth for further investigation.
Resolving Electronic Transitions in Synthetic Fluorescent Protein Chromophores by Magnetic Circular Dichroism
作者:Petr Štěpánek、Thomas Y. Cowie、Martin Šafařík、Jaroslav Šebestík、Radek Pohl、Petr Bouř
DOI:10.1002/cphc.201600313
日期:2016.8.4
bands than plain absorption and fluorescence. Observed spectral patterns are rationalized with the aid of time‐dependent density functional theory (TDDFT) computations and the sum‐over‐state (SOS) formalism, which also reveals a significant dependence of MCD intensities on chromophore conformation. The combination of organic and theoretical chemistry with spectroscopic techniques also appears useful in
Novel Diamide-Based Benzenesulfonamides as Selective Carbonic Anhydrase IX Inhibitors Endowed with Antitumor Activity: Synthesis, Biological Evaluation and In Silico Insights
作者:Mohamed A. Abdelrahman、Wagdy M. Eldehna、Alessio Nocentini、Silvia Bua、Sara T. Al-Rashood、Ghada S. Hassan、Alessandro Bonardi、Abdulrahman A. Almehizia、Hamad M. Alkahtani、Amal Alharbi、Paola Gratteri、Claudiu T. Supuran
DOI:10.3390/ijms20102484
日期:——
In this work, we present the synthesis and biological evaluation of novel series of diamide-based benzenesulfonamides 5a–h as inhibitors of the metalloenzyme carbonicanhydrase (CA, EC 4.2.1.1) isoforms hCA I, II, IX and XII. The target tumor-associated isoforms hCA IX and XII were undeniably the most affected ones (KIs: 8.3–123.3 and 9.8–134.5 nM, respectively). Notably, diamides 5a and 5h stood out