scholarly journals Two decades of recent advances of Ugi reactions: synthetic and pharmaceutical applications

RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 42644-42681
Author(s):  
Manar Ahmed Fouad ◽  
Hamida Abdel-Hamid ◽  
Mohammed Salah Ayoup
Keyword(s):  
Natural Products ◽  
Heterocyclic Compounds ◽  
Cyclic Peptides ◽  
Ugi Reaction ◽  
Pharmaceutical Applications ◽  
Recent Advances

We highlight the recent advances of the Ugi reaction in the last two decades from 2000–2019, mainly in the synthesis of linear or cyclic peptides, heterocyclic compounds with versatile ring sizes, and natural products, as well as the enantioselective Ugi reactions.

Recent Advances in the Transition Metal Catalyzed Addition of Carboxylic Acids to Alkynes

2021 ◽  
Vol 25 ◽  
Author(s):  
Victorio Cadierno
Keyword(s):  
Natural Products ◽  
Transition Metal ◽  
Carboxylic Acids ◽  
Heterocyclic Compounds ◽  
Biologically Active ◽  
Recent Advances ◽  
Enol Esters ◽  
Cascade Processes ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

: Recent advances in the metal-catalyzed hydrofunctionalization of alkynes with carboxylic acids are comprehensively reviewed. Both inter- and intramolecular processes, leading respectively to enol esters and lactones, are discussed, as well as the involvement of these transformations in the synthesis of natural products and biologically active molecules, and the assembly of elaborated heterocyclic compounds though cascade processes. Literature published since 2011 is covered.

Two decades of recent advances of Passerini reactions: synthetic and potential pharmaceutical applications

2022 ◽  
Author(s):  
Yasmin Wahby ◽  
Hamida Abdel-Hamid ◽  
Mohammed Salah Ayoup
Keyword(s):  
Natural Products ◽  
Pharmaceutical Applications ◽  
Recent Advances

This perspective describes the applications of Passerini reactions in the last two decades from 2000 to 2021 in pharmaceutical applications and synthesis of peptides, natural products, macrocycles, dendrimers, and versatile types of heterocycles.

Recent Advances in Directed sp2 C-H Functionalization Towards Synthesis of N-Heterocycles and O-Heterocycles

2021 ◽  
Author(s):  
Bhargav Desai ◽  
Monak Patel ◽  
Bharat Z Dholakiya ◽  
Sujoy Rana ◽  
Togati Naveen
Keyword(s):  
Natural Products ◽  
Heterocyclic Compounds ◽  
The Core ◽  
Recent Advances

Heterocyclic compounds are widely present in the core structures of several natural products, pharmaceuticals and agrochemicals thus great efforts have been ascribed for their synthesis in a mild and simpler...

scholarly journals Recent Advances in the Discovery and Biosynthetic Study of Eukaryotic RiPP Natural Products

Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1541 ◽  
Author(s):  
Luo ◽  
Dong
Keyword(s):  
Natural Products ◽  
Molecular Basis ◽  
Enzyme Catalysis ◽  
Cyclic Peptides ◽  
Genome Mining ◽  
Review Article ◽  
Biosynthetic Pathways ◽  
Biosynthetic Enzyme ◽  
Recent Advances ◽  
Modified Peptides

Natural products have played indispensable roles in drug development and biomedical research. Ribosomally synthesized and post-translationally modified peptides (RiPPs) are a group of fast-expanding natural products attribute to genome mining efforts in recent years. Most RiPP natural products were discovered from bacteria, yet many eukaryotic cyclic peptides turned out to be of RiPP origin. This review article presents recent advances in the discovery of eukaryotic RiPP natural products, the elucidation of their biosynthetic pathways, and the molecular basis for their biosynthetic enzyme catalysis.

Recent Advances in Cycloaddition Reactions with Alkynes to Construct Heterocycles

Synthesis ◽  
2020 ◽  
Vol 52 (24) ◽  
pp. 3818-3836
Author(s):  
Jin-Heng Li ◽  
De-Lie An ◽  
Jing-Hao Qin
Keyword(s):  
Natural Products ◽  
Transition Metal ◽  
Heterocyclic Compounds ◽  
Cycloaddition Reactions ◽  
Structural Motifs ◽  
Recent Advances ◽  
Wide Range ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Heterocyclic compounds, especially N-heterocycles and O-heterocycles, are prominent structural motifs present in numerous natural products and medically and/or economically important compounds. This review aims to describe the development of transition-metal-catalyzed cycloaddition reactions of functionalized m-atom partners with alkynes to access a wide range of five-, six-, and seven-membered heterocycles, that is functionalized N-heterocycles and O-heterocycles such as azepines, isoquinolines, isocoumarins, spiroheterocycles, indoles, furans, and pyrroles, in a selectively controlled manner with an emphasis on scope and limitations and with a discussion of the mechanisms.1 Introduction2 Intermolecular Cycloaddition To Construct Azepine Derivatives2.1 [5+2] Cycloaddition2.2 [3+2+2] Cycloaddition2.3 [3+2]/[5+2] Cycloaddition3 Intermolecular [4+2] Cycloaddition To Construct Isoquinolines or Isocoumarins4 Intermolecular [3+2] Cycloaddition To Construct Spirohetero­cyclic Compounds, Indoles, Furans, and Pyrroles5 Summary and Outlook

A REVIEW ON RECENT ADVANCES IN CHEMISTRY, SYNTHESIS AND BIOLOGICAL APPLICATIONS OF ISATIN DERIVATIVES

2018 ◽  
pp. 16-22
Author(s):  
Shukla PK ◽  
Singh MP ◽  
Patel R
Keyword(s):  
Heterocyclic Compounds ◽  
Biologically Active ◽  
Biological Applications ◽  
Plant Origin ◽  
Recent Past ◽  
Pharmacological Activities ◽  
Naturally Occurring ◽  
Recent Advances ◽  
Biological Aspects ◽  
Isatin Derivatives

Indole and its derivatives have engaged a unique place in the chemistry of nitrogen heterocyclic compounds. The recognition of the plant growthhormone, heteroauxin, the significant amino acids, tryptamine & tryptophan and anti-inflammatory drug, indomethacine are the imperativederivatives of indole which have added stimulus to this review work. Isatin (1H-indole-2,3-dione), an indole derivative of plant origin. Althoughit is a naturally occurring compound, but was synthesized by Erdmann and Laurent in 1840 before it was found in nature. Isatin is a versatileprecursor for many biologically active molecules and its diversified nature makes it a versatile substrate for further modifications. It is concernedin many pharmacological activities like anti-malarial, antiviral, anti-allergic, antimicrobial etc; isatin and its derivatives have been also found todemonstrate promising outcomes against various cancer cell lines. This review provides a brief overview on the recent advances and futureperspectives on chemistry and biological aspects of isatin and its derivatives reported in the recent past.

Recent Advances in Synthesis and Identification of Cyclic Peptides for Bioapplications

2017 ◽  
Vol 17 (20) ◽  
Author(s):  
Yong Siang Ong ◽  
Liqian Gao ◽  
Karunakaran A. Kalesh ◽  
Zhiqiang Yu ◽  
Jigang Wang ◽  
...  
Keyword(s):  
Cyclic Peptides ◽  
Recent Advances

Recent Advances in Therapeutic Applications of Bisbenzimidazoles

2020 ◽  
Vol 16 (4) ◽  
pp. 454-486 ◽  
Author(s):  
Smita Verma ◽  
Vishnuvardh Ravichandiran ◽  
Nihar Ranjan ◽  
Swaran J.S. Flora
Keyword(s):  
Heterocyclic Compounds ◽  
Wide Spectrum ◽  
Dna Recognition ◽  
Present Review ◽  
Pharmacological Activities ◽  
Structural Motifs ◽  
Therapeutic Applications ◽  
The Past ◽  
Recent Advances

Nitrogen-containing heterocycles are one of the most common structural motifs in approximately 80% of the marketed drugs. Of these, benzimidazoles analogues are known to elicit a wide spectrum of pharmaceutical activities such as anticancer, antibacterial, antiparasitic, antiviral, antifungal as well as chemosensor effect. Based on the benzimidazole core fused heterocyclic compounds, crescent-shaped bisbenzimidazoles were developed which provided an early breakthrough in the sequence-specific DNA recognition. Over the years, a number of functional variations in the bisbenzimidazole core have led to the emergence of their unique properties and established them as versatile ligands against several classes of pathogens. The present review provides an overview of diverse pharmacological activities of the bisbenzimidazole analogues in the past decade with a brief account of its development through the years.

scholarly journals Recent advances in the chemical transformations of functionalized alkylidenecyclopropanes (FACPs)

2017 ◽  
Vol 53 (44) ◽  
pp. 5935-5945 ◽  
Author(s):  
Liu-Zhu Yu ◽  
Kai Chen ◽  
Zi-Zhong Zhu ◽  
Min Shi
Keyword(s):  
Heterocyclic Compounds ◽  
Chemical Transformations ◽  
Recent Advances

Classification of functionalized alkylidenecyclopropanes (FACPs) and recent chemical transformations for the synthesis of novel and useful polycyclic and heterocyclic compounds.

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