Results 61 to 70 of about 2,492 (186)

Synthesis and HPLC-ECD Study of Cytostatic Condensed O,N-Heterocycles Obtained from 3-Aminoflavanones

Biomolecules, 2020
Racemic chiral O,N-heterocycles containing 2-arylchroman or 2-aryl-2H-chromene subunit condensed with morpholine, thiazole, or pyrrole moieties at the C-3-C-4 bond were synthesized with various substitution patterns of the aryl group by the cyclization ...
Ádám Szappanos, Attila Mándi, Katalin Gulácsi, Erika Lisztes, Balázs István Tóth, Tamás Bíró, Anita Kónya-Ábrahám, Attila Kiss-Szikszai, Attila Bényei, Sándor Antus, Tibor Kurtán   +10 more
doaj   +1 more source

Bis‐Furans: A Sustainable Source of Diverse Molecular Architectures

European Journal of Organic Chemistry, Volume 29, Issue 10, 9 March 2026.
A concise synthetic route to diverse acyclic and heterocyclic compounds has been developed by combining hetero‐Diels–Alder reactions, DBU‐promoted ring openings, and Lewis base‐catalyzed annulations. Nitrosoalkenes reacted with furan derivatives to form 4a,7a‐dihydro‐4H‐furo[2,3‐e][1,2]oxazines, which underwent DBU‐promoted rearrangements to 6H‐1,2 ...
Ana L. Cardoso, José A. Paixão, Teresa M. V. D. Pinho e Melo   +2 more
wiley   +1 more source

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

Molecular Oncology, Volume 20, Issue 3, Page 688-708, March 2026.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak, Bodee Nutho, Worawat Wattanathana, Narumon Phaonakrop, Bunnatut Panasawatwong, Katharina Erlenbach‐Wuensch, Sittiruk Roytrakul, Regine Schneider‐Stock, Pithi Chanvorachote   +8 more
wiley   +1 more source

Exploring Novel Nitrofuryl‐1,3,4‐Thiadiazole‐Based Derivatives: Design, Synthesis, and Evaluation of In Vitro Leishmanicidal and Trypanocidal Activity

Archiv der Pharmazie, Volume 359, Issue 3, March 2026.
In a series of substituted 1‐[5‐(5‐nitrofuran‐2‐yl)‐1,3,4‐thiadiazol‐2‐yl]piperidine‐4‐carboxamides evaluated for in vitro antileishmanial and antitrypanosomal activity, compound 18 emerged as the most promising derivative, showing submicromolar anti‐parasitic effects targeting diverse Leishmania and Trypanosoma species and acceptable selectivity ...
Alireza Mousavi, Martina Slapničková, Maryam Norouzbahari, Sarah D'Alessandro, Parham Foroumadi, Fariba Peytam, Federica Perego, Eva Doleželová, Zahra Emamgholipour, Maliheh Barazandeh Tehrani, Seyed Esmaeil Sadat‐Ebrahimi, Elahe Hosseinzadeh, Elmira Meghrazi Ahadi, Loghman Firoozpour, Hamidreza Bijanzadeh, Nicoletta Basilico, Alena Zíková, Alireza Foroumadi   +17 more
wiley   +1 more source

Oxazines: A New Class of Second-Order Nonlinear Optical Switches

Journal of the American Chemical Society, 2016
A combined experimental-theoretical investigation has revealed that oxazine-based compounds are multiaddressable, multistate, and multifunctional molecular switches exhibiting contrasts of both linear and second-order nonlinear optical properties. The switching properties are particularly large when the substituent is a donor group.
Beaujean, Pierre, Bondu, Flavie, Plaquet, Aurélie, Garcia-Amoros, Jaume, Cusido, Janet, Raymo, Françiso M., Castet, Frédéric, Rodriguez, Vincent, Champagne, Benoît   +8 more
openaire   +2 more sources

Iminoéthers-1 3 cycliques : chimie et applications dans le domaine des additifs pétroliers et des matériaux organiques Cyclic 1,3-Iminoethers: Chemistry and Applications in the Field of Petroleum Additives and Organic Materials

Oil & Gas Science and Technology, 2006
Cet article est consacré aux iminoéthers-1,3 cycliques les plus courants : les oxazines-1,3 et oxazolines-1,3. La première partie rappelle les synthèses de ces composés et quelques aspects récents de leur chimie : réactions d'hydrolyse, réactions de ...
Le Perchec P., Sillion B., Salle R.
doaj   +1 more source

One-Pot Metal-Free Synthesis of 3-CF₃-1,3-Oxazinopyridines by Reaction of Pyridines with CF₃CO-Acetylenes

Molecules, 2019
The reaction of pyridines with trifluoroacetylated acetylenes was investigated. It was found that the reaction of various pyridines with two molecules of CF3CO-acetylenes proceeds under mild metal-free conditions.
Vasiliy M. Muzalevskiy, Zoia A. Sizova, Kseniya V. Belyaeva, Boris A. Trofimov, Valentine G. Nenajdenko   +4 more
doaj   +1 more source

Identification of Novel Class of Triazolo-Thiadiazoles as Potent Inhibitors of Human Heparanase and their Anticancer Activity

BMC Cancer, 2017
Background Expression and activity of heparanase, an endoglycosidase that cleaves heparan sulfate (HS) side chains of proteoglycans, is associated with progression and poor prognosis of many cancers which makes it an attractive drug target in cancer ...
C. P. Baburajeev, Chakrabhavi Dhananjaya Mohan, Shobith Rangappa, Daniel J. Mason, Julian E. Fuchs, Andreas Bender, Uri Barash, Israel Vlodavsky, Basappa, Kanchugarakoppal S. Rangappa   +9 more
doaj   +1 more source

Synthesis of rigid p-terphenyl-linked carbohydrate mimetics

Beilstein Journal of Organic Chemistry, 2014
An approach to β-D-2-aminotalose- and β-D-2-aminoidose-configured carbohydrate mimetics bearing a phenyl substituent is described. Unnatural divalent rigid p-terphenyl-linked C-aryl glycosides with 2.0 nm dimension are available using Suzuki cross ...
Maja Kandziora, Hans-Ulrich Reissig
doaj   +1 more source

5′-Nitro-1,4-dihydrospiro[3,1-benzoxazine-2,3′-indolin]-2′-one

IUCrData, 2018
In the title compound, C15H11N3O4, the six-membered oxazine ring adopts a half-chair conformation and is oriented at an angle of 78.63 (9)° with respect to the pyrrolidine ring of the indoline ring system, which adopts an envelope conformation. The spiro
Y. AaminaNaaz, Jayabal Kamalraja, Paramasivam T. Perumal, A. SubbiahPandi   +3 more
doaj   +1 more source