Results 31 to 40 of about 8,668,298 (309)

4-(4-Ethoxyphenyl)-5-(4-methoxyphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one

Molbank, 2023
A new triazol-3-one resulted unexpectedly from the reduction reaction of a heterocyclic thioketone using sodium borohydride in pyridine containing a small amount of water.
Ion Burcă, Valentin Badea, Calin Deleanu, Vasile-Nicolae Bercean, Francisc Péter   +4 more
doaj   +1 more source

The Signaling Pathways and Targets of Natural Compounds from Traditional Chinese Medicine in Treating Ischemic Stroke

Molecules, 2022
Ischemic stroke (IS) is a common neurological disorder associated with high disability rates and mortality rates. At present, recombinant tissue plasminogen activator (r-tPA) is the only US(FDA)-approved drug for IS.
Xing-hua Li, Feng-ting Yin, Xiao-hang Zhou, A. Zhang, Hui Sun, Guang-li Yan, Xi-jun Wang   +6 more
semanticscholar   +1 more source

New Oligomeric Dihydrochalcones in the Moss Polytrichum commune: Identification, Isolation, and Antioxidant Activity

Metabolites, 2022
One of the most widespread representatives of mosses in the temperate and boreal latitudes of the Northern Hemisphere is common haircap (Polytrichum commune), which is known as the largest moss in the world and widely used in traditional herbal medicine.
Anna V. Faleva, Nikolay V. Ul’yanovskii, Danil I. Falev, Aleksandra A. Onuchina, Nikolay A. Budaev, Dmitry S. Kosyakov   +5 more
doaj   +1 more source

Natural Compounds With Antimicrobial and Antiviral Effect and Nanocarriers Used for Their Transportation

Frontiers in Pharmacology, 2021
Due to the increasing prevalence of life-threatening bacterial, fungal and viral infections and the ability of these human pathogens to develop resistance to current treatment strategies, there is a great need to find and develop new compunds to combat ...
D. Stan, A. Enciu, A. Mateescu, A. Ion, Ariana Cristina Brezeanu, D. Stan, C. Tănase   +6 more
semanticscholar   +1 more source

Synthesis and biological activity of novel series of 4-methoxy, and 4,9-dimethoxy-5-substituted furo[2,3-g]-1,2,3-benzoxathiazine-7,7-dioxide derivatives

Journal of Advanced Research, 2014
A novel series of 4-methoxy, and 4,9-dimethoxy-5-substituted furo[2,3-g]-1,2,3-benzoxathiazine-7,7-dioxide derivatives 3a,b, 10a–g and 11a–g were prepared in good yields via the reaction of 4-methoxy (1a) and 4,7-dimethoxy-5-acetyl-6-hydroxybenzofurans ...
Eslam R. El-Sawy, Manal S. Ebaid, Heba M. Abo-Salem, Salwa El-Hallouty, Emad M. Kassem, Adel H. Mandour   +5 more
doaj   +1 more source

Flavonolignans and Biological Activity of Nannorrhops ritchiana Leaves [PDF]

Journal of Advanced Pharmacy Research, 2018
Objectives: This study aimed at isolating the polyphenolic compounds of 70% methanol extract ofNannorrhops ritchiana Griff. leaves and assaying the antioxidant and cytotoxic activities of the extract and main fractions.
Ahmed Essa, Eman Haggag, Ezz EL-Din Elkhrisy, Tahia Mohamed   +3 more
doaj   +1 more source

Analysis of Softwood Lignans by Comprehensive Two-Dimensional Liquid Chromatography

Molecules, 2023
Lignans constitute a large group of phenolic plant secondary metabolites possessing high bioactivity. Their accurate determination in plant extracts with a complex chemical composition is challenging and requires advanced separation techniques.
Danil I. Falev, Ilya S. Voronov, Alexandra A. Onuchina, Anna V. Faleva, Nikolay V. Ul’yanovskii, Dmitry S. Kosyakov   +5 more
doaj   +1 more source

Antibiotics: Conventional Therapy and Natural Compounds with Antibacterial Activity—A Pharmaco-Toxicological Screening

Antibiotics, 2021
Antibiotics are considered as a cornerstone of modern medicine and their discovery offers the resolution to the infectious diseases problem. However, the excessive use of antibiotics worldwide has generated a critical public health issue and the ...
Daniel Florin Pancu, A. Scurtu, I. Macașoi, D. Marti, Marius Mioc, Codruța Șoica, D. Coricovac, D. Horhat, M. Poenaru, C. Dehelean   +9 more
semanticscholar   +1 more source

Supercritical Fluid Chromatography—Tandem Mass Spectrometry for Rapid Quantification of Pentacyclic Triterpenoids in Plant Extracts

Pharmaceuticals, 2022
Pentacyclic triterpenoids (PCTs) are a widely distributed class of plant secondary metabolites. These compounds have high bioactive properties, primarily antitumor and antioxidant activity.
Danil I. Falev, Denis V. Ovchinnikov, Ilya S. Voronov, Anna V. Faleva, Nikolay V. Ul’yanovskii, Dmitry S. Kosyakov   +5 more
doaj   +1 more source

Antifungal Activity of Essential Oil and Plant-Derived Natural Compounds against Aspergillus flavus

Antibiotics, 2022
Aspergillus flavus is a facultative parasite that contaminates several important food crops at both the pre- and post-harvest stages. Moreover, it is an opportunistic animal and human pathogen that causes aspergillosis diseases. A.
F. Tian, So Young Woo, Sang Yoo Lee, Su Been Park, Yaxin Zheng, H. Chun   +5 more
semanticscholar   +1 more source