Results 81 to 90 of about 3,269,112 (357)

Similarity analysis, synthesis, and bioassay of antibacterial cyclic peptidomimetics

Beilstein Journal of Organic Chemistry, 2012
The chemical similarity of antibacterial cyclic peptides and peptidomimetics was studied in order to identify new promising cyclic scaffolds. A large descriptor space coupled with cluster analysis was employed to digitize known antibacterial structures ...
Workalemahu M. Berhanu, Mohamed A. Ibrahim, Girinath G. Pillai, Alexander A. Oliferenko, Levan Khelashvili, Farukh Jabeen, Bushra Mirza, Farzana Latif Ansari, Ihsan ul-Haq, Said A. El-Feky, Alan R. Katritzky   +10 more
doaj   +1 more source

Effect of the isotiazole adjuvants in combination with cisplatin in chemotherapy of neuroepithelial tumors: experimental results and modeling

Scientific Reports, 2023
Chemotherapy is one of the main treatment options for cancer, but it is usually accompanied with negative side effects. The classical drugs combination with synergistic adjuvants can be the solution to this problem, allowing reducing therapeutic dose ...
Vladimir Potkin, Aliaxandr Pushkarchuk, Alexandra Zamaro, Hongwei Zhou, Sergey Kilin, Sergey Petkevich, Irina Kolesnik, Dominik L. Michels, Dmitry A. Lyakhov, Vladimir A. Kulchitsky   +9 more
doaj   +1 more source

A user-friendly Matlab program and GUI for the pseudorotation analysis of saturated five-membered ring systems based on scalar coupling constants [PDF]

, 2008
Background: The advent of combinatorial chemistry has revived the interest in five-membered heterocyclic rings as scaffolds in pharmaceutical research. They are also the target of modifications in nucleic acid chemistry.
Hendrickx, Pieter, Martins, José
core   +4 more sources

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Acyl Sonogashira Cross-Coupling: State of the Art and Application to the Synthesis of Heterocyclic Compounds

Catalysts, 2019
The acyl Sonogashira reaction represents an extension of Sonogashira cross-coupling to acid chlorides which replace aryl or vinyl halides, while terminal acetylenes are used as coupling partners in both reactions.
G. Albano, L. Aronica
semanticscholar   +1 more source

Benzo[b]tiophen-3-ol derivatives as effective inhibitors of human monoamine oxidase: design, synthesis, and biological activity [PDF]

, 2019
A series of benzo[b]thiophen-3-ols were synthesised and investigated as potential human monoamine oxidase (hMAO) inhibitors in vitro as well as ex vivo in rat cortex synaptosomes by means of evaluation of 3,4-dihydroxyphenylacetic acid/dopamine (DOPAC/DA)
Alcaro, Stefano, Bagetta, Donatella, Carradori, Simone, Chimenti, Paola, Ferrante, Claudio, Guglielmi, Paolo, Leone, Sheila, Ortuso, Francesco, Petzer, Anél, Petzer, Jacobus P, Recinella, Lucia, Rotondi, Giulia, Secci, Daniela, Zengin, Gokhan   +13 more
core   +1 more source

Donor‐Substituted C(sp3)‐Bridged Phosphorus‐Heterotriangulenes as Blue Thermally Activated Delayed Fluorescence Emitters

Advanced Optical Materials, EarlyView.
The newly developed regioselective strategy for the para‐functionalization of C(sp3)‐bridged phosphorus‐centered heterotriangulene delivers a series of donor‐acceptor emitters exhibiting thermally activated delayed fluorescence. The carbazole‐substituted compounds feature a unique combination of high photoluminescence quantum yields up to 75%, deep ...
Maximilian Schöner, Angelina Jocic, Siegfried Harrer, Mahni Fatahi, Jonas Maurmann, Andrea Reule, Frank Rominger, Eli Zysman‐Colman, Milan Kivala   +8 more
wiley   +1 more source

Nano ordered polyacrylonitrile-grafted chitosan as a robust biopolymeric catalyst for efficient synthesis of highly substituted pyrrole derivatives

Scientific Reports
A novel heterogeneous nanocatalyst was developed using chitosan, as a natural polysaccharide derived from crustacean shells, and its in-situ grafting by polyacrylonitrile to afford nano ordered polyacrylonitrile-modified chitosan (CS-g-PAN). The obtained
Mahsa Zohrehvand, Niloufar Nashibi, Mohammad G. Dekamin, Afshin Sarvary   +3 more
doaj   +1 more source

Crystal structures of ethyl {2-[4-(4-isopropylphenyl)thiazol-2-yl]phenyl}carbamate and ethyl {2-[4-(3-nitrophenyl)thiazol-2-yl]phenyl}carbamate

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title compounds, C21H22N2O2S (I) and C18H15N3O4S (II), are structural analogs of the alkaloid Thiosporine B. Both molecules adopt a near-planar V-shaped conformation, which is consolidated by intramolecular N—H...N and C—H...O hydrogen bonds.
Elena V. Sukhonosova, Sergey A. Sokov, Gennady I. Ostapenko, Alexander S. Bunev, Pavel V. Dorovatovskii, Yan V. Zubavichus, Victor N. Khrustalev   +6 more
doaj   +1 more source

Reactivity of [Re\u3csub\u3e2\u3c/sub\u3e(CO)\u3csub\u3e8\u3c/sub\u3e(MeCN)\u3csub\u3e2\u3c/sub\u3e] with Thiazoles: Hydrido Bridged Dirhenium Compounds Bearing Thiazoles in Different Coordination Modes [PDF]

, 2007
Reactions of the labile compound [Re2(CO)8(MeCN)2] with thiazole and 4-methylthiazole in refluxing benzene afforded the new compounds [Re2(CO)7{μ-2,3-η2-C3H(R)NS}{η1-NC3H2(4-R)S}(μ-H)] (1, R = H; 2, R = CH3), [Re2(CO)6{μ-2,3-η2-C3H(R)NS}{η1-NC3H2(4-R)S}2(
Ahmed, Faruque, Bennett, Dennis W., Das, Anamika, Hassan, Mohammad R., Haworth, Daniel T., Hossain, G. M. Golzar, Kabir, Shariff E., Lindeman, Sergey V., Siddiquee, Tasneem   +8 more
core   +1 more source