scholarly journals Chemoinformatic analysis of alkaloids isolated from Peganum genus

Author(s):  
Omer Bayazeid ◽  
Tohfa Nasibova

Abstract Peganum genus is rich with its high phytochemical and botanical variability. Peganum species have been used as sedative, antitumor, analgesics, antidepressant, and other medicinal purposes. The aim of this research is to study the molecular diversity of Peganum genus to shed more lights on the structure-activity relationship of the alkaloids isolated from Peganum genus. All Peganum alkaloids were grouped according to their structure properties. A chemoinformatic approach (Swiss Model) was used to determine the molecular targets of these alkaloids. To visualize the results, R programming language was used to generate hierarchical clustering heatmaps. The results of this study helps researcher to better understanding of the structural-activity relationship of Peganum alkaloids.

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
MA Brenzan ◽  
CV Nakamura ◽  
BPD Filho ◽  
T Ueda-Nakamura ◽  
MCM Young ◽  
...  

2020 ◽  
Vol 24 (7) ◽  
pp. 746-773
Author(s):  
Péter Bakó ◽  
Tamás Nemcsok ◽  
Zsolt Rapi ◽  
György Keglevich

: Many catalysts were tested in asymmetric Michael additions in order to synthesize enantioenriched products. One of the most common reaction types among the Michael reactions is the conjugated addition of malonates to enones making it possible to investigate the structure–activity relationship of the catalysts. The most commonly used Michael acceptors are chalcone, substituted chalcones, chalcone derivatives, cyclic enones, while typical donors may be dimethyl, diethyl, dipropyl, diisopropyl, dibutyl, di-tert-butyl and dibenzyl malonates. This review summarizes the most important enantioselective catalysts applied in these types of reactions.


2019 ◽  
Vol 23 (5) ◽  
pp. 503-516 ◽  
Author(s):  
Qiang Zhang ◽  
Xude Wang ◽  
Liyan Lv ◽  
Guangyue Su ◽  
Yuqing Zhao

Dammarane-type ginsenosides are a class of tetracyclic triterpenoids with the same dammarane skeleton. These compounds have a wide range of pharmaceutical applications for neoplasms, diabetes mellitus and other metabolic syndromes, hyperlipidemia, cardiovascular and cerebrovascular diseases, aging, neurodegenerative disease, bone disease, liver disease, kidney disease, gastrointestinal disease and other conditions. In order to develop new antineoplastic drugs, it is necessary to improve the bioactivity, solubility and bioavailability, and illuminate the mechanism of action of these compounds. A large number of ginsenosides and their derivatives have been separated from certain herbs or synthesized, and tested in various experiments, such as anti-proliferation, induction of apoptosis, cell cycle arrest and cancer-involved signaling pathways. In this review, we have summarized the progress in structural modification, shed light on the structure-activity relationship (SAR), and offered insights into biosynthesis-structural association. This review is expected to provide a preliminary guide for the modification and synthesis of ginsenosides.


2012 ◽  
Vol 9 (3) ◽  
pp. 329-335 ◽  
Author(s):  
Surajit Kumar Ghosh ◽  
Ashmita Saha ◽  
Bornali Hazarika ◽  
Udaya Pratap Singh ◽  
Hans Raj Bhat ◽  
...  

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