Tetralone scaffolds and their potential therapeutic applications

2020 ◽  
Vol 17 ◽  
Author(s):  
Bhagwati Gauni ◽  
Krunal Mehariya ◽  
Anamik Shah ◽  
Srinivas Murty Duggirala
Keyword(s):  
Antitumor Activity ◽  
Organic Synthesis ◽  
Small Molecule ◽  
Heterocyclic Compounds ◽  
Biological Activities ◽  
Acetylcholinesterase Inhibitors ◽  
Building Blocks ◽  
Structural Features ◽  
Therapeutic Applications ◽  
Small Molecule Library

: Substituted tetralones have played a substantial role in organic synthesis due to their strong reactivity and suitability as a starting material for a range of synthetic heterocyclic compounds, pharmaceuticals along with biological activities as well as precursors of many natural products and their derivatives. Many α-tetralone derivatives are building blocks, that have been used in the synthesis of therapeutically functional compounds like some antibiotics, antidepressants, acetylcholinesterase inhibitors effective for treating Alzheimer’s disease and alkaloids possessing antitumor activity. In this review, there has been an attempt to explore the small molecule library having α-tetralone scaffold along with their diverse biological activities. Structural features of α-tetralone derivatives responsible for potential therapeutic applications are also described.

scholarly journals Strategies To Access γ-Hydroxy-γ-butyrolactams

Synthesis ◽  
2018 ◽  
Vol 50 (06) ◽  
pp. 1175-1198 ◽  
Author(s):  
Laurent Commeiras ◽  
Muhammad Idham Darussalam Mardjan ◽  
Jean-Luc Parrain
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Broad Spectrum ◽  
Heterocyclic Compounds ◽  
Biological Activities ◽  
Building Blocks ◽  
Pharmaceutical Molecules

α,β-Unsaturated γ-hydroxy-γ-butyrolactams are of a great interest due to their presence in designed pharmaceutical molecules and numerous natural products displaying a broad spectrum of biological activities. In addition, these five-membered heterocyclic compounds are also relevant and versatile building blocks in organic synthesis. In this context, strategies for the construction of these scaffolds has triggered considerable attention and this review highlights the progress in the formation of α,β-unsaturated γ-hydroxy-γ-butyrolactams (5-hydroxy-1,5-dihydro-2H-pyrrol-2-ones).1 Introduction2 Intramolecular Routes3 Intermolecular Routes4 Oxidation of Heterocyclic Compounds5 Miscellaneous6 Conclusion

4-Formylpyrazoles: Applications in Organic Synthesis

2019 ◽  
Vol 16 (2) ◽  
pp. 193-203 ◽  
Author(s):  
Renu Bala ◽  
Poonam Kumari ◽  
Sumit Sood ◽  
Karan Singh
Keyword(s):  
Organic Compounds ◽  
Organic Synthesis ◽  
Schiff Bases ◽  
Biological Activities ◽  
Building Blocks

4-Formylpyrazoles are useful building blocks in organic synthesis. This review focuses on the applications of 4-formylpyrazoles to generate a large variety of organic compounds and heterocycles such as Schiff bases, pyrazolylpyrazolines, pyrazoloquinolinones, 4H-pyrazolopyran, pyrazolylbenzoxazole, pyrazolothiadiazepines, pyrazolyloxazolone, pyrazolyloxadiazolines, pyrazolylthiadiazolines, imidazolylpyrazoles, pyrazolopyridines, chromenopyrazolones, thiopyranothiazolylpyrazoles and many others. Many of these molecules exhibit excellent biological activities.

Advances of biphenyl small-molecule inhibitors targeting PD-1/PD-L1 interaction in cancer immunotherapy

2021 ◽  
Author(s):  
Roufen Chen ◽  
Dandan Yuan ◽  
JunJie Ma
Keyword(s):  
Monoclonal Antibodies ◽  
Small Molecule ◽  
Small Molecule Inhibitors ◽  
Biological Activities ◽  
Treatment Strategies ◽  
Structural Features ◽  
Great Promise ◽  
Programmed Death ◽  
Programmed Death 1 ◽  
High Production Cost

Immunotherapy inhibiting the programmed death-1/programmed death ligand-1 (PD-1/PD-L1) interaction has emerged as one of the most attractive cancer treatment strategies. So far, the clinically used PD-1/PD-L1 inhibitors are monoclonal antibodies, but monoclonal antibodies have several limitations, such as poor pharmacokinetic properties, unchecked immune responses and high production cost. The development of small-molecule inhibitors targeting PD-1/PD-L1 interaction is showing great promise as a potential alternative or complementary therapeutic approach of monoclonal antibodies. In this article, the authors classify the reported biphenyl small-molecule inhibitors into symmetrical and asymmetrical types based on their structural features and further review their representative inhibitors and biological activities, as well as the binding models for providing insight into further exploration of more potent biphenyl small-molecule inhibitors targeting PD-1/PD-L1 interaction.

scholarly journals N-Propargylic β-enaminocarbonyls: powerful and versatile building blocks in organic synthesis

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13198-13211 ◽  
Author(s):  
Sattar Arshadi ◽  
Esmail Vessally ◽  
Ladan Edjlali ◽  
Ebrahim Ghorbani-Kalhor ◽  
Rahim Hosseinzadeh-Khanmiri
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Heterocyclic Compounds ◽  
Building Blocks

Nitrogen-containing heterocyclic compounds are not only prevalent in an extensive number of natural products and synthetic pharmaceuticals but are also used as building blocks in organic synthesis.

Regioselective N-alkylation of (2-chloroquinolin-3-yl) methanol with N-heterocyclic compounds using the Mitsunobu reagent

2011 ◽  
Vol 65 (3) ◽  
Author(s):  
Selvaraj Roopan ◽  
Fazlur-Rahman Khan ◽  
Jong Jin
Keyword(s):  
Natural Product ◽  
Organic Synthesis ◽  
Heterocyclic Compounds ◽  
Building Blocks ◽  
Natural Product Synthesis ◽  
Mitsunobu Reaction ◽  
Reaction Conditions ◽  
Diethyl Azodicarboxylate ◽  
Nitrogen Heterocyclic

AbstractThe Mitsunobu reaction is a well-established fundamental reaction and has been widely applied in organic synthesis. In this paper, under Mitsunobu conditions dehydration proceeds between (2-chloroquinolin-3-yl)methanol and nitrogen heterocyclic compounds such as quinazolinone, pyrimidone, 2-oxoquinoline in dry THF in the presence of triethylamine, triphenylphosphane and diethyl azodicarboxylate to give the corresponding products. As part of our recent research, we attempted to couple two N-heterocyclic compounds under Mitsunobu reaction conditions to provide efficient building blocks for natural product synthesis.

scholarly journals Schiff Bases: Interesting Scaffolds with Promising Antitumoral Properties

2021 ◽  
Vol 11 (4) ◽  
pp. 1877
Author(s):  
Domenico Iacopetta ◽  
Jessica Ceramella ◽  
Alessia Catalano ◽  
Carmela Saturnino ◽  
Maria Grazia Bonomo ◽  
...  
Keyword(s):  
Antitumor Activity ◽  
Organic Compounds ◽  
Organic Synthesis ◽  
Schiff Bases ◽  
Antitumor Agents ◽  
Biological Activities ◽  
Anti Inflammatory ◽  
Polymer Stabilizers

Schiff bases, named after Hugo Schiff, are highly reactive organic compounds broadly used as pigments and dyes, catalysts, intermediates in organic synthesis, and polymer stabilizers. Lots of Schiff bases are described in the literature for various biological activities, including antimalarial, antibacterial, antifungal, anti-inflammatory, and antiviral. Schiff bases are also known for their ability to form complexes with several metals. Very often, complexes of Schiff bases with metals and Schiff bases alone have demonstrated interesting antitumor activity. Given the innumerable vastness of data regarding antitumor activity of all these compounds, we focused our attention on mono- and bis-Schiff bases alone as antitumor agents. We will highlight the most significant examples of compounds belonging to this class reported in the literature.

scholarly journals Diversity-Oriented Synthesis: Amino Acetophenones as Building Blocks for the Synthesis of Natural Product Analogs

2021 ◽  
Vol 14 (11) ◽  
pp. 1127
Author(s):  
Mathias Eymery ◽  
Viet-Khoa Tran-Nguyen ◽  
Ahcène Boumendjel
Keyword(s):  
Drug Discovery ◽  
Natural Product ◽  
Organic Synthesis ◽  
Building Blocks ◽  
Structural Features ◽  
The Other ◽  
Pharmacological Properties ◽  
Diversity Oriented Synthesis ◽  
Fully Integrated ◽  
Lead Compounds

Diversity-Oriented Synthesis (DOS) represents a strategy to obtain molecule libraries with diverse structural features starting from one common compound in limited steps of synthesis. During the last two decades, DOS has become an unmissable strategy in organic synthesis and is fully integrated in various drug discovery processes. On the other hand, natural products with multiple relevant pharmacological properties have been extensively investigated as scaffolds for ligand-based drug design. In this article, we report the amino dimethoxyacetophenones that can be easily synthesized and scaled up from the commercially available 3,5-dimethoxyaniline as valuable starting blocks for the DOS of natural product analogs. More focus is placed on the synthesis of analogs of flavones, coumarins, azocanes, chalcones, and aurones, which are frequently studied as lead compounds in drug discovery.

scholarly journals Chiral Flavonoids as Antitumor Agents

2021 ◽  
Vol 14 (12) ◽  
pp. 1267
Author(s):  
Cláudia Pinto ◽  
Honorina Cidade ◽  
Madalena Pinto ◽  
Maria Elizabeth Tiritan
Keyword(s):  
Antitumor Activity ◽  
Antitumor Agents ◽  
Biological Activities ◽  
Structural Diversity ◽  
Building Blocks ◽  
Inhibitory Effect ◽  
Chiral Molecules ◽  
Growth Inhibitory ◽  
Synthetic Approaches

Flavonoids are a group of natural products with a great structural diversity, widely distributed in plant kingdom. They play an important role in plant growth, development and defense against aggressors. Flavonoids show a huge variety of biological activities such as antioxidant, anti-inflammatory, anti-mutagenic, antimicrobial and antitumor, being able to modulate a large diversity of cellular enzymatic activities. Among natural flavonoids, some classes comprise chiral molecules including flavanones, flavan-3-ols, isoflavanones, and rotenoids, which have one or more stereogenic centers. Interestingly, in some cases, individual compounds of enantiomeric pairs have shown different antitumor activity. In nature, these compounds are mainly biosynthesized as pure enantiomers. Nevertheless, they are often isolated as racemates, being necessary to carry out their chiral separation to perform enantioselectivity studies. Synthetic chiral flavonoids with promising antitumor activity have also been obtained using diverse synthetic approaches. In fact, several new chiral bioactive flavonoids have been synthesized by enantioselective synthesis. Particularly, flavopiridol was the first cyclin-dependent kinase (CDK) inhibitor which entered clinical trials. The chiral pool approaches using amino acid as chiral building blocks have also been reported to achieve small libraries of chrysin derivatives with more potent in vitro growth inhibitory effect than chrysin, reinforcing the importance of the introduction of chiral moieties to improve antitumor activity. In this work, a literature review of natural and synthetic chiral flavonoids with antitumor activity is reported for the first time.

Pyrazole Carboxylic Acid and Derivatives: Synthesis and Biological Applications

2020 ◽  
Vol 17 ◽  
Author(s):  
Adnan Cetin
Keyword(s):  
Organic Chemistry ◽  
Biological Activity ◽  
Carboxylic Acid ◽  
Heterocyclic Compounds ◽  
Medicinal Chemistry ◽  
Biological Activities ◽  
Building Blocks ◽  
Literature Survey ◽  
Synthetic Methods ◽  
Biological Applications

: The heterocyclic compounds are the building blocks for synthesis of the different biological active compounds in the organic chemistry. Heterocyclic compounds have versatile synthetic applicability and biological activity. Pyrazole carboxylic acid derivatives are significant scaffold structures in heterocyclic compounds due to biologic activities such as antimicrobial, anticancer, inflammatory, antidepressant, antifungal anti-tubercular and antiviral etc. The aim of this mini-review is an overview synthesis of pyrazole carboxylic acid derivatives and their biologic applications. The summarized literature survey presents in detail biological activities of pyrazole carboxylic acid derivatives and their various synthetic methods. This mini-review can be guide to many scientists in medicinal chemistry.

Recent developments of quinoline derivatives and their potential biological activities

2020 ◽  
Vol 17 ◽  
Author(s):  
Mustapha Dib ◽  
Hajiba Ouchetto ◽  
Khadija Ouchetto ◽  
Abderrafia Hafid ◽  
Mostafa Khouili
Keyword(s):  
Drug Discovery ◽  
Organic Synthesis ◽  
Heterocyclic Compounds ◽  
Recent Progress ◽  
Biological Activities ◽  
Quinoline Derivatives ◽  
Quinoline Ring ◽  
Research Groups ◽  
Drug Discovery And Development ◽  
Recent Developments

: Heterocyclic compounds containing the quinoline ring play a significant role in organic synthesis and therapeutic chemistry. Polyfunctionalized quinolines have attracted the attention of many research groups, especially those who work on the drug discovery and development. These derivatives have been widely explored by the research biochemists and are reported to possess wide biological activities. This review focuses on the recent progress in the synthesis of heterocyclic compounds based-quinoline and their potential biological activities.

Sign in / Sign up

Export Citation Format

Share Document