Results 241 to 250 of about 82,854 (283)

Synthesis of Nonsymmetrical 3,3'-Bicoumarins: Total Synthesis of Arteminorin C, 3,3'-Biisofraxidin, and Biscopoletin. [PDF]

Org Lett
Castañón-García M, López-Mendoza P, Galicia-Badillo D, Miranda LD.   +3 more
europepmc   +1 more source

Studies on azole compounds. IV. Reaction of 2,5-diarylthiazole 3-oxides with acetic anhydride. Isolation of the intermediates, 4,5-diacetoxy-2,5-diaryl-4,5-dihydrothiazoles.

, 1977
Takumi Matsuda, N. HONJO, Motoyoshi Yamazaki, Yoshinobu Goto   +3 more
openalex   +2 more sources

Biosafety Evaluation of 6,7‐Dihydroxy‐3‐(2‐Nitrophenyl)Coumarin in Human Cells

Journal of Applied Toxicology, Volume 46, Issue 1, Page 198-206, January 2026.
ABSTRACT Coumarins are considered a privileged scaffold in medicinal chemistry, as they may interact with biological macromolecules, presenting several pharmacological properties. Their potential makes them an object of study for the evaluation of their safety for humans, which is essential in the design of a potential drug.
Júlia Zocca Nunes de Barros, Luma Eduarda Lopes Escalante, Maria João Matos, Edson Luis Maistro   +3 more
wiley   +1 more source

Synthesis and Gas Permeability of Polynorbornene Dicarboximides Bearing Sulfonyl Moieties. [PDF]

Polymers (Basel)
Onchi A, Rubio-Rangel L, Santiago AA, Marín-Méndez BO, López-González M, Vargas J.   +5 more
europepmc   +1 more source

Bisphosphonate‐Modified Polymer‐Coated NaYF4:Yb,Er,Pr Upconverting Nanoparticles for Cell Imaging: Synthesis, Physicochemical Characterization and Biosafety

Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 114, Issue 1, January 2026.
ABSTRACT Upconverting nanoparticles (UCNPs) have attracted much attention in nanomedicine due to their ability to upconvert photons. However, their adverse effects hinder the biomedical applications. In this paper, bisphosphonate‐modified poly(isobutylene‐alt‐maleic acid)‐graft‐poly(N,N‐dimethylacrylamide)‐coated NaYF4:Yb,Er,Pr UCNPs (UCNP@PIMAPDMA ...
Taras Vasylyshyn, Vitalii Patsula, Oleksandr Shapoval, Ognen Pop‐Georgievski, Solomiya Paryzhak, Tetiana Dumych, Victoria Serhiyenko, Nadia Skorokhyd, Olga Klyuchivska, Rafał Konefał, Jiřina Hromádková, Lucia Machová Urdziková, Dana Mareková, Aleš Benda, Pavla Jendelová, Rostyslav Stoika, Daniel Horák   +16 more
wiley   +1 more source

Esterification of 3-quinuclidinol, a marker for the incapacitant BZ, for analysis by EI-GC-MS in OPCW test matrices. [PDF]

Sci Rep
Cho DS, Baliu-Rodriguez D, Valdez CA.
europepmc   +1 more source

Quantitative Analysis of Polymers by MALDI‐TOF Mass Spectrometry: Correlation Between Signal Intensity and Arm Number.

Journal of Mass Spectrometry, Volume 61, Issue 1, January 2026.
ABSTRACT The signal intensities of linear and star‐shaped poly(L‐lactides) (PLA) and poly (ethylene oxides) (PEO) were compared to determine the influence of the number of arms on the ionization in matrix‐assisted laser desorption/ionization time‐of‐flight (MALDI‐TOF) mass spectrometry. In this study, a variety of blends were prepared and investigated,
Mete‐Sungur Dalgic, Sourabh Kumar, Steffen M. Weidner   +2 more
wiley   +1 more source

Generation [via Tetradehydro-Diels-Alder Reactions] and Reactivity of 6-Fluorocyclohexa-1,2,4-triene Intermediates. [PDF]

Org Lett
Kevorkian PV, Hoye TR.
europepmc   +1 more source

Association and Dissociation Effect of Alcohols on Rate Constants of the Reaction with Acetic Anhydride.

, 1993
Jugo Koketsu, Akira Kato, Fumio Ando
openalex   +2 more sources

Improving the Synthesis of Degradable Cationic Nanogels for Nucleic Acid Delivery

Macromolecular Chemistry and Physics, Volume 227, Issue 1, 15 January 2026.
An improved robust strategy to generate biodegradable, cationic, core‐crosslinked, fully hydrophilic nanogels is presented. The cationic secondary amines of the crosslinker are first converted into hydrophobic Boc‐protected carbamates by a simple one‐pot reaction.
Alexander Fuchs, Leon Bixenmann, Jannis Willig, Aidan E. Izuagbe, Vladimir Stepanenko, Frank Würthner, Lutz Nuhn   +6 more
wiley   +1 more source