Russian Journal of General Chemistry最新文献

{"title":"Development of Heterobifunctional Structures Based on Dorsomorphin for Targeting Membrane Proteins","authors":"Daria S. Novikova,&nbsp;Anastasiya N. Sokolova,&nbsp;Svetlana S. Vorona,&nbsp;Vyacheslav G. Tribulovich","doi":"10.1134/S1070363226602966","DOIUrl":"10.1134/S1070363226602966","url":null,"abstract":"<p>The principle of constructing heterobifunctional molecules using the classical AMP-activated protein kinase inhibitor dorsomorphin is discussed. Based on computer modeling data, a structural modification of dorsomorphin targeting the MDR1 membrane protein is proposed. Three new PROTAC-type structures, differing in the length of the linker based on ω-amino acids, were designed and synthesized to induce ubiquitin-dependent proteolysis of MDR1.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1070363226602966.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Some Properties of New Derivatives of 4-Isobutylnicotinamide and Their Hydrogenated Analogs","authors":"Konstantin A. Frolov,&nbsp;Bogdan S. Krivokolysko,&nbsp;Denis V. Nikitenko,&nbsp;Sergey G. Krivokolysko","doi":"10.1134/S1070363226602061","DOIUrl":"10.1134/S1070363226602061","url":null,"abstract":"<p>The reaction of isovaleraldehyde, cyanothioacetamide, and <i>N</i>-(2-methylphenyl)-3-oxobutanamide in ethanol in the presence of an excess of <i>N</i>-methylmorpholine proceeds with the formation of 5-cyano-4-isobutyl-2-methyl-<i>N</i>-(2-methylphenyl)-6-thioxo-1,6-dihydropyridine-3-carboxamide in a 77% yield, whereas using piperidine as a base in this reaction afforded piperidinium 3-cyano-4-isobutyl-6-methyl-5-{[(2-methylphenyl)amino]carbonyl}-1,4-dihydropyridine-2-thiolate in an 81% yield, which were employed in the synthesis of their derivatives—substituted 2-alkylthiopyridines, 2-alkylthio-1,4-dihydropyridines, and thieno[2,3-<i>b</i>]pyridines.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction Note: Pyrazolidine-3,5-dione Derivatives: Synthesis, Computational, and In Vitro Screening Targeting Breast Cancer","authors":"Shruti Varshney,&nbsp;Rakhi Mishra,&nbsp;Harpreet Singh","doi":"10.1134/S1070363226170019","DOIUrl":"10.1134/S1070363226170019","url":null,"abstract":"","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CeO2 and CeO2/Pd Fibrous Nanocomposites: Synthesis, Structure and Catalytic Activity in Suzuki-Miyaura Cross Coupling and Soot Oxidation Reactions","authors":"Ekaterina I. Isaeva,&nbsp;Artem S. Igonin,&nbsp;Mikhail V. Staritsyn,&nbsp;Mikhail L. Fedoseev,&nbsp;Nadezhda V. Yakovleva","doi":"10.1134/S1070363226602450","DOIUrl":"10.1134/S1070363226602450","url":null,"abstract":"<p>A template method for the synthesis of fibrous cerium(IV) oxide and a photochemical method for its modification with palladium nanoparticles are proposed. It has been shown that irradiation of an aqueous solution of [Pd(NH₂OH)₄](OH)₂ in the presence of fibrous CeO₂ leads to the formation of monodisperse palladium particles with an average size of 65 nm on the CeO₂ surface. . The composition, crystal structure, morphology, specific surface area, and pore size distribution of the obtained CeO₂/Pd nanocomposites were investigated by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray powder diffraction analysis, FT-IR spectroscopy and N₂ adsorption-desorption isotherm analysis. The catalytic activity of the CeO₂/Pd nanocomposites in the Suzuki–Miyaura C–C cross-coupling reactions is demonstrated using the example of biaryl synthesis from bromosalicylic aldehyde, as well as in soot oxidation reactions.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Breast Cancer Evaluation of Benzimidazole-Based [1,2,4]-Triazolo[3,4-b][1,3,4]thiadiazine Hybrids as EGFR-Targeted Inhibitors","authors":"Sirikonda Bhagyalaxmi,&nbsp;Vasudeva Reddy Nagavelli","doi":"10.1134/S1070363226603662","DOIUrl":"10.1134/S1070363226603662","url":null,"abstract":"<p>A series of new benzimidazole-based [1,2,4]triazolo[3,4-<i>b</i>][1,3,4]thiadiazine derivatives was produced and tested for anticancer and EGFR inhibitory properties. The synthesized compounds exhibited moderate to significant cytotoxic effect against breast cancer MCF-7 and MDA-MB-231 cell lines. 6-(3,5-Dinitrophenyl)- and 6-(3,4-dichlorophenyl)-3-[(2-methyl-1<i>H</i>-benzo[<i>d</i>]imidazol-1-yl)methyl]-7<i>H</i>-[1,2,4]triazolo[3,4-<i>b</i>][1,3,4]thiadiazines among them showed significant anticancer activity equivalent to the conventional drug erlotinib. 6-(3,5-Dinitrophenyl)-3-[(2-methyl-1<i>H</i>-benzo[<i>d</i>]imidazol-1-yl)methyl]-7<i>H</i>-[1,2,4]triazolo[3,4-<i>b</i>][1,3,4]thiadiazine showed the most potent EGFR inhibition with an IC₅₀ value of 0.38 ± 0.04 μM. Molecular docking studies against EGFR protein (PDB ID: 4HJO) showed significant binding interactions wherein the compound demonstrated the highest docking score of –10.59 kcal/mol with three hydrogen bond interactions. The results indicate that 6-(3,5-dinitrophenyl)-3-[(2-methyl-1<i>H</i>-benzo[<i>d</i>]imidazol-1-yl)methyl]-7<i>H</i>-[1,2,4]triazolo[3,4-<i>b</i>][1,3,4]thiadiazine can be a promising lead chemical for EGFR targeted anticancer treatment.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Aromatic Aminopolyol and Its Effect on the Properties of Rigid Polyurethane Foams","authors":"Sofia A. Baltacheva,&nbsp;Indira N. Bakirova","doi":"10.1134/S1070363226601717","DOIUrl":"10.1134/S1070363226601717","url":null,"abstract":"<p>An aromatic aminopolyol, 2,6-bis{[bis(2-hydroxyethyl)amino]methyl}-4-(2,4-dimethylheptan-3-yl)phenol, was synthesized via the Mannich reaction. The process involves the catalytic condensation of nonylphenol, formaldehyde, and diethanolamine, followed by catalyst neutralization with an alkali solution and water removal by distillation. The structure of the target product was confirmed by mass spectrometry, IR spectroscopy, and chemical analysis. The presence of hydroxyl groups, tertiary nitrogen atoms, and a nonyl fragment in the aminopolyol structure, which act as a structuring agent, catalyst, and surfactant, respectively, provided the rationale for selecting the product as a multifunctional additive in the synthesis of rigid polyurethane foam. A formulation incorporating the aminopolyol was developed, which accelerated the foaming process and yielded rigid polyurethane foam with low thermal conductivity. The research findings indicate the promising potential of using this aminopolyol for producing competitive polyurethane thermal insulation materials.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning-ANN Driven Hardness Modeling in SPS-Processed AlCuCrFeMnWx High-Entropy Alloys","authors":"Devesh Kumar,&nbsp;Sangeeta Sharma,&nbsp;Sheetal Kumar Dewangan","doi":"10.1134/S1070363226602279","DOIUrl":"10.1134/S1070363226602279","url":null,"abstract":"<p>This study explores the design and synthesis of nanocrystalline AlCuCrFeMnW<i>ₓ</i> high-entropy alloys through an integrated approach that combines mechanical alloying (MA) and spark plasma sintering (SPS), thereby enabling precise control over microstructural evolution and phase stability. Beyond experimental development, the work advances into a data-driven paradigm by establishing a robust artificial neural network (ANN) framework to capture the complex, nonlinear relationships between compositional variables, processing parameters, and resultant mechanical properties. A dataset comprising 20 samples, curated from experimental and literature sources, was used to develop and rigorously validate the model using exhaustive 20-fold leave-one-out cross-validation (LOOCV), incorporating six independent compositional inputs (Fe excluded due to near-perfect collinearity with Al, <i>r</i> = 0.9996) along with sintering temperature as a processing parameter. A reduced ANN architecture (7–5–1), employing Bayesian-regularized backpropagation, was evaluated alongside linear regression, random forest, support vector regression, and gradient boosting under an identical, leakage-free protocol with fold-wise feature standardization. Under LOOCV, the support vector regression model achieved the best generalization performance (<i>R</i>² = 0.5301, RMSE = 144.52 HV, accuracy = 67.23%), followed by the ANN (<i>R</i>² = 0.4084, RMSE = 162.16 HV, accuracy = 64.47%); all evaluated models’ RMSE exceeded the experimental Vickers indentation measurement uncertainty ( ± 11.75 HV), indicating that the residual error reflects genuine model limitation rather than measurement noise. This synergy between advanced processing techniques and a statistically rigorous, leakage-free machine-learning validation protocol establishes a transparent and reproducible pathway toward cost-effective alloy design, where experimental efforts are guided and refined through computational intelligence.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, Biological Properties, and Docking Study of 5-Substituted 2-[2-(Aryl)vinyl]-6-methylpyrimidin-4(3H)-ones","authors":"Zaruhi A. Hovasyan,&nbsp;Anna G. Sukiasyan,&nbsp;Hasmik A. Sargsyan,&nbsp;Jemma L. Barseghyan,&nbsp;Arthur A. Hambardzumyan,&nbsp;Mark Yu. Danghyan,&nbsp;Astghik A. Shahkhatuni,&nbsp;Arthur A. Harutyunyan","doi":"10.1134/S107036322660219X","DOIUrl":"10.1134/S107036322660219X","url":null,"abstract":"<p>5-Substituted 6-methyl-2-[(<i>E</i>)-2-aryl)ethenyl]pyrimidin-4(3<i>H</i>)-ones and 2,4-dioxo-6-[(<i>E</i>)-2-arylethenyl]-1,2,3,4-tetrahydropyrimidine-5-carbaldehydes were obtained by condensation of 5-substituted 2,6-dimethylpyrimidin-4(3<i>H</i>)-ones and 6-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde with aromatic aldehydes, respectively. The antibacterial and antifungal properties of the obtained compounds were studied and a docking study was carried out against four targets.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of 2,3′-Azacorrole Dimer via Acid-Catalyzed Oxidative Coupling","authors":"Guoru Chen,&nbsp;Zhonglan Wei,&nbsp;Guangyuan Luo,&nbsp;Xiaofang Li","doi":"10.1134/S1070363226603170","DOIUrl":"10.1134/S1070363226603170","url":null,"abstract":"<p>2,3′-Azacorrole dimer was synthesized via regioselective oxidative coupling of 10-azacorrole by <i>p</i>-chloranil in the presence of trifluoroacetic acid in moderate yield. The structures of all the products were characterized thoroughly by NMR and HRMS. The UV-Vis absorption spectra show obvious bathochromic shifts of both the Soret band and Q bands, along with a marked increase in the absorbance of the Q bands.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Composite Topological Descriptor for Analyzing Sublimation-Enthalpy and Ionization-Energy Trends in Polycyclic Conjugated Hydrocarbons","authors":"Hamad Mukhtar,&nbsp;Tahira Perveen Nawaz,&nbsp;Muhammad Saleem","doi":"10.1134/S1070363226602589","DOIUrl":"10.1134/S1070363226602589","url":null,"abstract":"<p>Polycyclic conjugated hydrocarbons (PCHs) provide a useful molecular set for examining how size, connectivity, and fusion topology are reflected in graph-theoretical descriptors. In this study, a log-transformed equal-weight composite descriptor, <i>C</i>(<i>G</i>), was constructed from the Wiener, Harary, Randić, first Zagreb, and metric degree polynomial indices. Structural descriptor and degeneracy analyses were conducted for 23 PCHs, whereas endpoint-specific complete datasets of 20 compounds were used for sublimation enthalpy (Δ<i>H</i>_sub) and experimental gas-phase ionization energy (<i>IE</i>). The ionization-energy-related electronic-response proxy was defined as <i>R</i>_<i>IE</i> = 1/<i>IE</i>, without any additional numerical scaling. <i>C</i>(<i>G</i>) showed positive monotonic associations with Δ_sub<i>H</i>_m (298.15 K) (Spearman ρ = 0.8951, <i>p</i> = 9.95 × 10^–8) and <i>R</i>_<i>IE</i> (ρ = 0.7364, <i>p</i> = 2.14 × 10^–4). Simple linear regression explained 80.54% of the variation in Δ_sub<i>H</i>_m (298.15 K) and 50.66% of the variation in RIE within the corresponding datasets. Under leave-one-out cross-validation, the OLS multi-descriptor model produced the highest internal <i>Q</i>² values for both Δ_sub<i>H</i>_m (298.15 K) (<i>Q</i>² = 0.8420; RMSECV = 14.73 kJ mol^–1) and <i>R</i>_<i>IE</i> (<i>Q</i>² = 0.5491; RMSECV = 0.005722 <i>e</i>^–1). However, these results should be interpreted cautiously because each endpoint dataset contains only 20 compounds and the descriptor components are strongly intercorrelated. At full numerical precision, <i>C</i>(<i>G</i>) assigned distinct values to all 23 structures, although its discrimination decreased after numerical rounding. The findings therefore represent exploratory, internally validated structure–property associations rather than externally validated predictive models.</p>","PeriodicalId":761,"journal":{"name":"Russian Journal of General Chemistry","volume":"96 10","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}