Reham A. Mohamed-Ezzat, Benson M. Kariuki, Rasha A. Azzam
{"title":"Discovery of Promising Sulfadiazine Derivatives With Anti-Proliferative Activity Against Tumor Cell Lines","authors":"Reham A. Mohamed-Ezzat, Benson M. Kariuki, Rasha A. Azzam","doi":"10.1002/jhet.4893","DOIUrl":"https://doi.org/10.1002/jhet.4893","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel series of pyrimidine sulfonamide derivatives was synthesized through a strategic approach involving the creation of substituted dihydropyrimidinyl-benzenesulfonamides and subsequent transformation into their chlorinated analogues. These compounds were then subjected to reactions with various amines and phenols, yielding unique substituted sulfapyrimidines. These novel structures integrated essential pharmacophores such as phenols, secondary amines, and benzenesulfonamide moieties, each contributing distinct biological potencies, chemical reactivity, and enhanced pharmacological features. In the pursuit of effective anticancer agents, the newly substituted pyrimidine sulfonamides were characterized using spectroscopic and x-ray diffraction techniques. The compounds were evaluated for their anti-proliferative potency against the NCI 60-cell lines panel, revealing that compound <b>7c</b> exhibited significant growth inhibition across multiple cancer cell lines. Further assessment through MTT assay on HCT-116 and MCF-7 cell lines demonstrated cytotoxicity, while cell cycle analysis of MCF-7 cells treated with compound <b>7c</b> revealed arrest at the S phase. Moreover, the effect of <b>7c</b> on programmed cell death was evaluated using the Annexin V/PI apoptosis assay. The observed promising activity positions these pyrimidine-based scaffolds as potential candidates for future drug development, offering valuable insights for medicinal chemists engaged in the design and synthesis of anticancer drugs.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"1980-1998"},"PeriodicalIF":2.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
William H. Garcia-Santos, Martha C. Mayorquin-Torres, Nimsi Campos-Xolalpa, Salud Pérez-Gutiérrez, Marcos Flores-Álamo, Martín A. Iglesias-Arteaga
{"title":"Synthesis of Benzannulated Spiroketals Derived From Stigmasterol and Sitosterol by Pd-Catalyzed Spirocyclization. NMR and X-ray Characterization. Evaluation of Cytotoxicity and Anti-Inflammatory Activity","authors":"William H. Garcia-Santos, Martha C. Mayorquin-Torres, Nimsi Campos-Xolalpa, Salud Pérez-Gutiérrez, Marcos Flores-Álamo, Martín A. Iglesias-Arteaga","doi":"10.1002/jhet.4900","DOIUrl":"https://doi.org/10.1002/jhet.4900","url":null,"abstract":"<div>\u0000 \u0000 <p>Five new benzannulated steroid spiroketals were synthesized by Pd-catalyzed spiroketalization of 5α and 5β-alkynediols derived from stigmasterol and sitosterol. The detailed nuclear magnetic resonance (NMR) and X-ray characterization of the newly obtained spiroketals are presented. While the obtained compounds showed null or very low cytotoxicity, two of them inhibited more than 60% of the nitrous oxide production in J774A.1 macrophages stimulated with LPS, showing promising properties as anti-inflammatory agents.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"1999-2014"},"PeriodicalIF":2.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Current Advances in Synthesis of Pyrazole Derivatives: An Approach Toward Energetic Materials","authors":"Jaime Portilla","doi":"10.1002/jhet.4904","DOIUrl":"https://doi.org/10.1002/jhet.4904","url":null,"abstract":"<div>\u0000 \u0000 <p>Pyrazole derivatives are strategic structural motifs due to their proven utility in preparing chemicals in biological, pharmaceutical, photophysical, technological, and industrial fields; therefore, syntheses of pyrazole-containing compounds are highly desirable. Some nitrogen-rich pyrazoles, specifically nitrated derivatives posing high density and moderate thermal stability, have been used as energetic compounds since a high amount of energy is stored in their structures that can be released quickly with high detonation power under external stimuli (i.e., thermal, impact, and friction). These compounds have good capacity and sensitivity in explosives, propellants, and pyrotechnics applications in eco-friendly ways. Therefore, this contribution focuses on recent and illustrative examples regarding the (i) synthesis and reactivity of pyrazoles, especially works of the last decade, highlighting works on (ii) applications in energetic compounds to analyze their scope.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"2026-2039"},"PeriodicalIF":2.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design, Synthesis, In Vitro Evaluation of New Tetrahydrooxazolo [5′,4′:4,5]Pyrimido[1,2-a]Azepinone Derivatives as Anticancer Agents","authors":"Yan Zeng, Yan Ma, Li Xiao, Chao Niu, Lifei Nie","doi":"10.1002/jhet.4907","DOIUrl":"https://doi.org/10.1002/jhet.4907","url":null,"abstract":"<div>\u0000 \u0000 <p>A total of 48 tetrahydrooxazolo-[5′,4′:4,5]pyrimido[1,2-<i>a</i>]azepinones were designed and synthesized from a scaffold hopping approach. All compounds were confirmed by analysis using <sup>1</sup>H NMR, <sup>13</sup>C NMR, and HRMS techniques. The synthesized compounds were evaluated against the human cancer cell lines (HeLa, MCF-7, A549) in vitro, and the structure–activity relationships were summarized<i>.</i> The compound <b>E43</b> exhibited the best inhibitory activity against HeLa, MCF-7, A549, displaying IC<sub>50</sub> values of 1.48 ± 0.13, 3.01 ± 0.09, and 5.11 ± 0.13 μM. Molecular docking indicated that compound <b>E43</b> may bind to protein (PDB:6FEX) via hydrogen bond and π stacking. Further, molecular dynamics simulations indicated a relatively low binding free energy (−40.06 kJ·mol<sup>−1</sup>) of compound <b>E43</b> with protein. In conclusion, these findings suggested that <b>E43</b> is promising as a potential novel anticancer drug candidate worthy of further investigation.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"1966-1979"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ekaterina N. Kudryavtseva, Boris V. Lichitsky, Andrey N. Komogortsev, Constantine V. Milyutin, Evgeny V. Tretyakov
{"title":"The Study of Reaction of Hexafluoro-1,4-Napthoquinone With Substituted 5-Aminopyrazoles","authors":"Ekaterina N. Kudryavtseva, Boris V. Lichitsky, Andrey N. Komogortsev, Constantine V. Milyutin, Evgeny V. Tretyakov","doi":"10.1002/jhet.4911","DOIUrl":"https://doi.org/10.1002/jhet.4911","url":null,"abstract":"<div>\u0000 \u0000 <p>For the first time, the interaction of perfluoro-1,4-naphthoquinone with various 5-aminopyrazoles was investigated. It was shown that three types of products can be obtained depending on the structure of starting aminopyrazole. For all examples, the substitution of one fluorine atom in quinone moiety was observed. Wherein, in most cases, the starting aminopyrazoles act as a C-nucleophile leading to 2-(5-aminopyrazol-4-yl)-3,5,6,7,8-pentafluoronaphthalene-1,4-diones. At the same time substrates unsubstituted at ring nitrogen atom regiospecifically react at aminogroup resulting in the formation of 2,5,6,7,8-pentafluoro-3-((pyrazol-5-yl)amino)naphthalene-1,4-diones. Besides that, the absence of steric hindrance in the pyrazole unit allowed us to direct the process at nitrogen atom in Position 2 and synthesize zwitter-ionic 3-(5-aminopyrazol-2-ium-2-yl)-5,6,7,8-tetrafluoro-1,4-dioxo-1,4-dihydronaphthalen-2-olates. The structures of two types of obtained products were confirmed by x-ray analysis.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"1932-1941"},"PeriodicalIF":2.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhiping Liu, Jie Pang, Lijie Che, Chunfang Gan, Jianguo Cui, Yanmin Huang
{"title":"GaCl3-Catalyzed [3 + 2]-Cycloaddition/Esterification Cascade of Donor–Acceptor Cyclopropanes With Salicylaldehydes for the Synthesis of Tetrahydro-4\u0000 H-Furo[3,2-c]Chromen-4-Ones","authors":"Zhiping Liu, Jie Pang, Lijie Che, Chunfang Gan, Jianguo Cui, Yanmin Huang","doi":"10.1002/jhet.4917","DOIUrl":"https://doi.org/10.1002/jhet.4917","url":null,"abstract":"<div>\u0000 \u0000 <p>A GaCl<sub>3</sub>-catalyzed [3 + 2]-cycloaddition/intramolecular esterification cascade of donor–acceptor cyclopropane-1,1-diesters with salicylaldehydes has been reported. A wide range of tetrahydro-4<i>H</i>-furo[3,2-<i>c</i>]chromen-4-ones have been efficiently delivered in moderate to good yields. Mechanistic studies suggest that the reaction involves the [3 + 2]-cycloaddition followed by intramolecular esterification to access 4<i>H</i>-furo[3,2-<i>c</i>]chromenones.</p>\u0000 </div>","PeriodicalId":194,"journal":{"name":"Journal of Heterocyclic Chemistry","volume":"61 12","pages":"1953-1965"},"PeriodicalIF":2.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}