Entry to 4,5-Fused Coumarin frameworks via Radical-Promoted Alkylative Intramolecular C5-Annulation DOI
Chada Raji Reddy,

Venkatareddy Edhara,

Ankita Kumari

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(31), P. 6385 - 6392

Published: Jan. 1, 2024

A silver-catalyzed oxidative protocol for the synthesis of previously unfamiliar 4,5-fused coumarins is disclosed.

Language: Английский

Recent advances in microwave-assisted multicomponent synthesis of spiro heterocycles DOI Creative Commons
Ramin Javahershenas, Ata Makarem, Karel D. Klika

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(8), P. 5547 - 5565

Published: Jan. 1, 2024

Spiro heterocycle frameworks are a class of organic compounds that possesses unique structural features making them highly sought-after targets in drug discovery due to their diverse biological and pharmacological activities.

Language: Английский

Citations

25

Recent Advances in the Application of 2‐Aminobenzothiazole to the Multicomponent Synthesis of Heterocycles DOI Creative Commons
Ramin Javahershenas, Jianlin Han, Mosstafa Kazemi

et al.

ChemistryOpen, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract Heterocycles are a vital class of compounds in numerous fields, including drug discovery, agriculture, and materials science. Efficient methods for the synthesis heterocycles remain critical meeting demands these industries. Recent advances multicomponent reactions (MCRs) utilizing 2‐aminobenzothiazole (ABT) have shown promising results formation heterocycles. The versatility this context has enabled rapid efficient construction diverse heterocyclic structures. Various synthetic methodologies involving discussed, highlighting its importance as valuable building block complex potential applications discovery material science also explored. Overall, review provides comprehensive overview current state research field offers insights into future directions area study. We highlight ABT versatile sustainable starting via MCRs, with significant implications chemical industry.

Language: Английский

Citations

20

Recent Advances in the Multicomponent Synthesis of Heterocycles using Thiosemicarbazide DOI Open Access
Ramin Javahershenas, Jianlin Han, Mosstafa Kazemi

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(30)

Published: Aug. 6, 2024

Abstract This review provides an overview of the recent advances in synthesis diverse heterocyclic compounds using thiosemicarbazide as a key building block via multicomponent reactions. Thiosemicarbazide is versatile reagent that has gained significant attention organic due to its ability participate reactions for efficient and sustainable construction assembly novel bioactive molecules pharmaceuticals. discusses potential applications future directions this rapidly evolving area research. It valuable insights into innovative approaches heterocycles thiosemicarbazide, showcasing significance modern chemistry In summary, current state art, highlighting use reported between 2015 early 2024.

Language: Английский

Citations

18

Recent developments using malononitrile in ultrasound-assisted multicomponent synthesis of heterocycles DOI Creative Commons
Ramin Javahershenas,

Sahand Nikzat

Ultrasonics Sonochemistry, Journal Year: 2023, Volume and Issue: 102, P. 106741 - 106741

Published: Dec. 23, 2023

Ultrasonic irradiation serves as a vigorous and environmentally sustainable approach for augmenting multicomponent reactions (MCRs), offering benefits such thermal enhancement, agitation, activation, among others. Malononitrile emerges versatile reagent in this context, participating myriad of MCRs to produce structurally diverse heterocyclic frameworks. This review encapsulates the critical role malononitrile sonochemical synthesis these structures. The paper further delves into biochemical pharmacological implications heterocycles, elucidating their reaction mechanisms well delineating method's scope limitations. We furnish an overview merits challenges inherent synthetic offer insights potential avenues future research.

Language: Английский

Citations

26

New pyrazolylindolin-2-one based coumarin derivatives as anti-melanoma agents: design, synthesis, dual BRAFV600E/VEGFR-2 inhibition, and computational studies DOI Creative Commons
Ahmed Sabt, Mohammed A. Khedr, Wagdy M. Eldehna

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(9), P. 5907 - 5925

Published: Jan. 1, 2024

New pyrazolylindolin-2-one linked coumarin derivatives were designed as dual BRAF V600E /VEGFR-2 inhibitors targeting melanoma cells A375. Docking simulation showed various interactions with the binding residues in and VEGFR-2 active sites.

Language: Английский

Citations

9

Carbon nanotubes as heterogeneous catalysts for the multicomponent reaction synthesis of heterocycles DOI
Ramin Javahershenas,

Vadim A. Soloshonok,

Karel D. Klika

et al.

Carbon letters, Journal Year: 2024, Volume and Issue: 35(1), P. 75 - 105

Published: Oct. 5, 2024

Language: Английский

Citations

9

One-Pot, for the Green Preparation of Benzimidazoles and 2,3-Dihydroquinazolin-4(1H)-ones Catalyzed by In2O3 NPs/Glycerol DOI
Fadhil Faez Sead, Vicky Jain, Anjan Kumar

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Language: Английский

Citations

1

Recent Advances in the Multicomponent Synthesis of Heterocycles Using 5-Aminotetrazole DOI
Ramin Javahershenas, Ata Makarem, Haibo Mei

et al.

Synthesis, Journal Year: 2024, Volume and Issue: 56(16), P. 2445 - 2461

Published: Jan. 8, 2024

Abstract The unique reactivity and beneficial features of the 5-aminotetrazole synthon (1H-tetrazol-5-amine) have made it a versatile effective building block in synthesis heterocyclic compounds. In addition, several drugs containing this scaffold with wide array biological properties been already introduced. Heterocyclic structures are backbone many biologically active industrially important 5-Aminotetrazole is one favored synthons used preparation heterocycle-bearing compounds, especially multicomponent synthesis. This review highlights comprehensive overview emerging applications as key component frameworks through reactions, reported between 2017 July 2023. 1 Introduction 2 3 Tetrazolopyrimidine Compounds 4 Spiro 5 Miscellaneous 6 Conclusion

Language: Английский

Citations

6

A Review of Anticancer Properties and Phytochemicals from Xao tam phan (Paramignya trimera (Oliv.) Guillaum) DOI Creative Commons

Pham Nguyen Bao Tran,

Na An,

Tran Thi Hong Chau

et al.

Natural Product Communications, Journal Year: 2025, Volume and Issue: 20(1)

Published: Jan. 1, 2025

Paramignya trimera ( P. (Oliv.) Guillaum), a Vietnamese plant has showed potential anticancer activities. Extracts from the plant's roots, stems, and leaves have shown cytotoxicity against variety of cancer cell lines. The mechanisms behind these actions include triggering apoptosis, blocking invasion, targeting particular signaling pathways. This review collected data available literature on trimera's properties compiled database its isolated compounds. Results indicate that extracts specific compounds, such as coumarins acridones, possess potential. Particularly, acridones exhibited comparable or superior HepG2 MCF-7 cells (IC 50 values 0.43-1.19 μM 0.22-0.40 μM, respectively) compared to doxorubicin 0.28 1.31 μM). Coumarins like 8-geranylumbelliferone ostruthin target IKKβ, while paratrimerin W shows various cancers. Paratrimerin I exhibit due N-methyl, C-4 methoxy, C-5 hydroxy groups in acridone skeleton. However, further research is needed elucidate precise action evaluate safety efficacy trimera-derived compounds clinical settings. identification 146 provides valuable resource for future drug discovery efforts.

Language: Английский

Citations

0

Elucidating the Mechanism of Coumarin Homodimerization Using 3-Acetylcoumarin Derivatives DOI Creative Commons
Kristina B. Simeonova, Ana I. Koleva, Nevena I. Petkova‐Yankova

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 651 - 651

Published: Feb. 1, 2025

The current study is a continuation of our previous investigations into the radical homodimeric reaction mechanism 3-acetylcoumarin. In study, effects different substituents on coumarin ring 3-acetylcoumarin are investigated both experimentally and theoretically. Several derivatives (substituted at C-6, C-7, C-8) were tested in optimized conditions under ultrasound irradiation, biscoumarin species isolated characterized. elucidation substituent’s effect was further by means DFT calculations (free-energy calculations, NBO analysis), initial substituted coumarins formed radicals. It observed that presence C-6 C-8 positions moiety would not affect significantly formation radical, while group position C-7 could either stabilize or destabilize depending electronic properties substituent.

Language: Английский

Citations

0