2023 December - 20 articles
The reaction of 8-(4-bromobenzoyl)-3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazine-1,6,7-trione with benzylamine in acetonitrile at room temperature afforded a good yield of (Z)-1-benzyl-5-(4-bromophenyl)-5-hydroxy-4-(2-oxomorpholin-3-ylidene)pyrrolidine-2...
As part of our ongoing attempt to broaden the applications of the amidoxime moiety as a potential source of new antileishmanial agents, this study focuses on the product 4-(5-Benzyl-3-((4-fluorophenyl)sulfonyl)-5-methyl-4,5-dihydrofuran-2-yl)-2-nitro...
The reaction of 3-benzoylpyrrolo[2,1-c][1,4]benzothiazine-1,2,4-trione with 2,3-dimethylquinoxaline afforded 3-benzoyl-2-hydroxy-3a-[(3-methylquinoxalin-2-yl)methyl]-1H-pyrrolo[2,1-c][1,4]benzothiazine-1,4(3aH)-dione in a moderate yield. The compound...
Copper(I)-catalyzed azide-alkyne cycloaddition was employed to construct biscalixarene assemblies from the calix[4]arene dipropargyl ethers and 4,4′-bis-azidomethylated azobenzene or stilbene. Three bis(calixarenes) having the calix[4]arene cor...
Quinoline and isoquinoline moieties occur in many natural and synthetic compounds exhibiting high biological activity. The purpose of this study was to analyze the chemical structures of 5,8-quinolinedione and 5,8-isoquinoline derivatives using FT-IR...
New 2-(4-(fluorosulfonyloxy)phenyl)benzoxazole (2) was synthesized through the SuFEx click reaction in a two-chamber reactor. The effect of silylation on the yield of the target compound was investigated. The fluorescent properties of compound 2 were...
A series of 5-FU-ASA hybrids were synthesized with good yields using click chemistry as the key step. The structures of these compounds were elucidated by spectroscopic analysis. Finally, an optimal pharmacokinetic profile was also estimated for each...
Treatment of the non-purified mixture of dinitro isomers obtained from the nitration of 1,4-dimethoxybenzene with piperidine led to the isolation of novel but minor adduct, 1-(2,5-dimethoxy-4-nitrophenyl)piperidine (2b) in 15% yield. Yields of nucleo...
New imidazolidine-2,4,5-triones with norabietic, nordehydroabietic, and adamantane substituents were synthesized by reacting oxalyl chloride and the corresponding ureas, providing good yields. Bioisosteric replacement of the ureide group with a parab...
Despite having been known for a long time, quaternary 4,4′-bipyridinium salts, or viologens, are still a highly inspiring class of compounds, thanks to their peculiar redox and charge transfer properties. However, more complex structures contai...
New derivative of 28-acetylbetulin containing a phenylpropynoyl moiety at the C-3 position was obtained by Steglich method. The chemical structure of this compound has been determined through 1H NMR, 13C NMR, IR, EI MS and HRMS. The antiproliferative...
This Special Issue, “Molecules from Side Reactions II”, belongs to the section Organic Synthesis of the journal Molbank and was launched in 2021, after the first edition, “Molecules from Side Reactions” [...]
In this study, the synthesis and biological activities of previously and newly synthesized oleanolic acid derivatives containing seven-membered cyclic amines at the C28 position were described. The obtained compounds were fully characterized via 1H a...
In this work, we report the unexpected conversion of a pyridine derivative into the corresponding N-benzylated pyridinium salt due to the presence of unreacted benzyl bromide in the crude product. This transformation was observed at room temperature...
Betaines of squaric acid have gained research interest because of their structural and spectral properties. We elucidated the crystal and molecular structure of the triethylammonium betaine of squaric acid (1) by X-ray crystallography, IR, and NMR sp...
As part of our ongoing research into the antileishmanial properties of amidoxime derivatives, we report a preliminary assessment of the antiparasitic properties of a novel compound, diethyl (5-benzyl-2-(4-(N′-hydroxycarbamimidoyl)phenyl)-5-meth...
Potassium 6-oxo-7,13,16,22-tetraazatetracyclo[12.6.2.18,12.017,21]tricosa-1(20),8(23),9,11,14,16,18,21-octaen-2-yne-15-carboxylate was synthesized through a multi-step pathway, starting from commercially available 3-iodo-1,2-phenylenediamine. Structu...
The development of highly efficient methods for the synthesis of chemical products by using renewable raw materials is one of the topical areas of medicinal chemistry. The paper presents the synthesis of (2aR,2a1S,5aR,9bR)-4-isopropyl-7,8-dimethoxy-2...
Viologens are a highly advantageous class of compounds for the synthesis of functional materials. Owing to their versatile structure, they can embed additional conjugated moieties, thus representing a convenient platform, for example for organic semi...
A novel single crystal of (3-(4-chlorophenyl)-4,5-dihydroisoxazol-5-yl)methyl benzenesulfonate has been synthetized via a one-pot sequential strategy under sonication. The single crystal has been investigated using X-ray diffraction analysis. Hydroge...
