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28 Results Found

  • Article
  • Open Access
4 Citations
2,355 Views
13 Pages

28 April 2023

Background and objective: The ginsenoside compound K (C-K) (which is a de-glycosylated derivative of major ginsenosides) is effective in the treatment of cancer, diabetes, inflammation, allergy, angiogenesis, aging, and has neuroprotective, and hepat...

  • Article
  • Open Access
14 Citations
4,442 Views
24 Pages

29 September 2021

Cirsium japonicum var. maackii (Maxim.) Matsum. or Korean thistle flower is a herbal plant used to treat tumors in Korean folk remedies, but its essential bioactives and pharmacological mechanisms against cancer have remained unexplored. This study i...

  • Article
  • Open Access
19 Citations
12,043 Views
13 Pages

Design and Synthesis of Some Thiazolidin-4-ones Based on (7-Hydroxy-2-oxo-2H-chromen-4-yl) Acetic Acid

  • Milan Cacic,
  • Maja Molnar,
  • Tomislav Balic,
  • Nela Draca and
  • Valentina Rajkovic

10 July 2009

(7-Hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid methyl ester(1) upon reaction with ethyl bromoacetate furnishes (7-ethoxycarbonylmethoxy-2-oxo-2H-chromen-4-yl)-acetic acid methylester (2), which on treatment with 100% hydrazine hydrate yields (7-hydraz...

  • Short Note
  • Open Access
139 Views
4 Pages

26 January 2026

2-({3-[2-(1-cyclohexen-1-yl)ethyl]-6,7-dimethoxy-4-oxo-3,4-dihydro-2-quinazolinyl}sulfanyl)-N-(4-ethylphenyl)butanamide (K284-6111; K284), the representative CHI3L1 inhibitor, has interesting biological activities, including anti-cancer and anti-infl...

  • Article
  • Open Access
3 Citations
3,900 Views
11 Pages

Rice Nudix Hydrolase OsNUDX2 Sanitizes Oxidized Nucleotides

  • Yuki Kondo,
  • Kazuhide Rikiishi and
  • Manabu Sugimoto

13 September 2022

Nudix hydrolase (NUDX) hydrolyzes 8-oxo-(d)GTP to reduce the levels of oxidized nucleotides in the cells. 8-oxo-(d)GTP produced by reactive oxygen species (ROS) is incorporated into DNA/RNA and mispaired with adenine, causing replicational and transc...

  • Article
  • Open Access
6 Citations
2,844 Views
20 Pages

20 December 2023

C11-oxy C19 and C11-oxy C21 steroids have been identified as novel steroids but their function remains unclear. This study aimed to investigate the pre-receptor regulation of C11-oxy steroids by 11β-hydroxysteroid dehydrogenase (11βHSD) int...

  • Article
  • Open Access
53 Citations
12,643 Views
16 Pages

20 October 2009

Some [(5Z)-(5-arylalkylidene-4-oxo-2-thioxo-1,3-thiazolidin-3-yl)]acetic acids were prepared as potential antifungal compounds. The general synthetic approach to all synthesized compounds is presented. Lipophilicity of all the discussed rhodanine-3-a...

  • Article
  • Open Access
1 Citations
1,722 Views
15 Pages

14 August 2025

Adenosine deaminase (ADA) is one of the most important enzymes in nucleoside metabolism, regulating the levels of adenosine and deoxyadenosine triphosphate (ADT/dATP) on either side of the cell membrane. This small protein (weighing approximately 40...

  • Communication
  • Open Access
4 Citations
3,174 Views
6 Pages

1-Methyl-3-{4-[(4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl)benzyl]}-2-phenylindole

  • Jean Guillon,
  • Solène Savrimoutou,
  • Sandra Rubio and
  • Vanessa Desplat

4 October 2018

The 1-methyl-3-{4-[(4-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl)benzyl]}-2-phenylindole compound has been successfully synthesized via a multistep pathway starting from 2-phenylindole. Structure characterization of this new indole deriva...

  • Article
  • Open Access
680 Views
21 Pages

21 April 2025

Dinuclear di-µ-oxo complexes of Mn3+ and Mn4+ ions, and mononuclear complexes of Mn3+ ions with tetraazamacrocycles ([12]aneN4, [14]aneN4, [15]aneN4) and C-substituted derivative (Me6[14]aneN4) as well as mononuclear complexes of Mn2+ ions with...

  • Article
  • Open Access
19 Citations
3,151 Views
12 Pages

2 October 2022

A new series of colorless polyimides (CPIs) with outstanding thermal properties and mechanical properties were fabricated by the copolymerization of a novel dianhydride and 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) with 2,2&pri...

  • Article
  • Open Access
2 Citations
3,222 Views
13 Pages

Heterologous Expression of Type II PKS Gene Cluster Leads to Diversified Angucyclines in Streptomyces albus J1074

  • Xiaoting Zhang,
  • Falei Zhang,
  • Chen Li,
  • Jiayi Li,
  • Xiao Xu,
  • Tianjiao Zhu,
  • Qian Che,
  • Deihai Li and
  • Guojian Zhang

22 October 2024

Heterologous expression has emerged as an effective strategy in activating Streptomyces cryptic gene clusters or improving yield. Eight compounds were successfully obtained by heterologous expression of the type II PKS gene cluster spi derived from m...

  • Article
  • Open Access
1 Citations
1,967 Views
17 Pages

Understanding Dioxygen Activation in the Fe(III)-Promoted Oxidative Dehydrogenation of Amines: A Computational Study

  • Ricardo D. Páez-López,
  • Miguel Á. Gómez-Soto,
  • Héctor F. Cortés-Hernández,
  • Alejandro Solano-Peralta,
  • Miguel Castro,
  • Peter M. H. Kroneck and
  • Martha E. Sosa-Torres

Hydrogenation and dehydrogenation reactions are fundamental in chemistry and essential for all living organisms. We employ density functional theory (DFT) to understand the reaction mechanism of the oxidative dehydrogenation (ODH) of the pyridyl-amin...

  • Article
  • Open Access
15 Citations
5,850 Views
34 Pages

Dibenzylideneacetone Induces Apoptosis in Cervical Cancer Cells through Ros-Mediated Mitochondrial Damage

  • Aline Pinto Zani,
  • Caroline Pinto Zani,
  • Zia Ud Din,
  • Edson Rodrigues-Filho,
  • Tânia Ueda-Nakamura,
  • Francielle Pelegrin Garcia,
  • Sueli de Oliveira Silva and
  • Celso Vataru Nakamura

30 January 2023

Cervical cancer is a health problem among women worldwide. Considering the limitations of prevention and antineoplastic chemotherapy against cervical cancer, research is needed to discover new, more effective, and safe antitumor agents. In the presen...

  • Article
  • Open Access
13 Citations
6,409 Views
20 Pages

13 January 2022

Thiazolo[4,5-d]pyrimidine derivatives are considered potential therapeutic agents, particularly in the development of anticancer drugs. In this study, new 7-oxo-(2a-e), 7-chloro-(3a-e) and also three 7-amino-(4a-c) 5-trifluoromethyl-2-thioxo-thiazolo...

  • Article
  • Open Access
687 Views
19 Pages

24 July 2025

Polyoxometalate (POM)-type supramolecular materials have unique structures and hold immense potential for development in the fields of biomedicine, information storage, and electrocatalysis. In this study, (NH4)3 [AlMo6O24H6]·7H2O was employed...

  • Proceeding Paper
  • Open Access

Kinetic Study of the Reaction Between 7-Methoxy-1-Tetralone and Glyoxylic Acid via Basic Catalysis

  • Asley K. Robles,
  • Elvia V. Cabrera,
  • Michelle E. Herrera,
  • Jhonny Correa-Abril and
  • Ullrich Stahl

11 November 2025

The present study focuses on the kinetics of the Knoevenagel condensation reaction between 7-methoxy-1-tetralone (1) and glyoxylic acid (2), catalyzed by potassium tert-butoxide in tert-butanol as a solvent, using a batch-type system under nitrogen a...

  • Article
  • Open Access
6 Citations
3,065 Views
16 Pages

Anti-Trypanosoma cruzi Properties of Sesquiterpene Lactones Isolated from Stevia spp.: In Vitro and In Silico Studies

  • Jimena Borgo,
  • Orlando G. Elso,
  • Jessica Gomez,
  • Mauro Coll,
  • Cesar A. N. Catalán,
  • Juan Mucci,
  • Guzmán Alvarez,
  • Lía M. Randall,
  • Patricia Barrera and
  • Valeria P. Sülsen
  • + 3 authors

Stevia species (Asteraceae) have been a rich source of terpenoid compounds, mainly sesquiterpene lactones, several of which show antiprotozoal activity. In the search for new trypanocidal compounds, S. satureiifolia var. satureiifolia and S. alp...

  • Article
  • Open Access
17 Citations
5,383 Views
24 Pages

3-Amino-5-(indol-3-yl)methylene-4-oxo-2-thioxothiazolidine Derivatives as Antimicrobial Agents: Synthesis, Computational and Biological Evaluation

  • Volodymyr Horishny,
  • Victor Kartsev,
  • Vasyl Matiychuk,
  • Athina Geronikaki,
  • Petrou Anthi,
  • Pavel Pogodin,
  • Vladimir Poroikov,
  • Marija Ivanov,
  • Marina Kostic and
  • Phaedra Eleftheriou
  • + 1 author

1 September 2020

Herein we report the design, synthesis, computational, and experimental evaluation of the antimicrobial activity of fourteen new 3-amino-5-(indol-3-yl) methylene-4-oxo-2-thioxothiazolidine derivatives. The structures were designed, and their antimicr...

  • Article
  • Open Access
44 Citations
5,333 Views
14 Pages

Cells possess the capability to adjust their volume for various physiological processes, presumably including cell proliferation and migration. The volume-regulated anion channel (VRAC), formed by LRRC8 heteromers, is critically involved in regulator...

  • Article
  • Open Access
10 Citations
3,731 Views
13 Pages

Organic Salt Hydrate as a Novel Paradigm for Thermal Energy Storage

  • Emanuela Mastronardo,
  • Emanuele La Mazza,
  • Davide Palamara,
  • Elpida Piperopoulos,
  • Daniela Iannazzo,
  • Edoardo Proverbio and
  • Candida Milone

14 June 2022

The use of inorganic salt hydrates for thermochemical energy storage (TCS) applications is widely investigated. One of the drawbacks that researchers face when studying this class of materials is their tendency to undergo deliquescence phenomena. We...

  • Article
  • Open Access
3 Citations
3,594 Views
18 Pages

N-O Ligand Supported Stannylenes: Preparation, Crystal, and Molecular Structures

  • Hannah S. I. Sullivan,
  • Andrew J. Straiton,
  • Gabriele Kociok-Köhn and
  • Andrew L. Johnson

A new series of tin(II) complexes (1, 2, 4, and 5) were successfully synthesized by employing hydroxy functionalized pyridine ligands, specifically 2-hydroxypyridine (hpH), 8-hydroxyquinoline (hqH), and 10-hydroxybenzo[h]quinoline (hbqH) as stabilizi...

  • Article
  • Open Access
1 Citations
1,669 Views
23 Pages

Analysis of Photocatalytic Properties of Poly(Methyl Methacrylate) Composites with Titanium(IV) and Ruthenium(III) Complexes

  • Barbara Kubiak,
  • Adrian Topolski,
  • Aleksandra Radtke,
  • Tadeusz Muzioł,
  • Olga Impert,
  • Anna Katafias,
  • Rudi van Eldik and
  • Piotr Piszczek

7 February 2025

This study explores poly(methyl methacrylate) (PMMA)-based composites as potential alternatives to conventional TiO2-based photocatalysts. Specifically, it examines PMMA composites enriched with oxo–titanium(IV) complexes, [Ti8O2(OiPr)20(man)4]...

  • Article
  • Open Access
23 Citations
5,600 Views
21 Pages

Proline Oxidation Supports Mitochondrial ATP Production When Complex I Is Inhibited

  • Gergely Pallag,
  • Sara Nazarian,
  • Dora Ravasz,
  • David Bui,
  • Timea Komlódi,
  • Carolina Doerrier,
  • Erich Gnaiger,
  • Thomas N. Seyfried and
  • Christos Chinopoulos

The oxidation of proline to pyrroline-5-carboxylate (P5C) leads to the transfer of electrons to ubiquinone in mitochondria that express proline dehydrogenase (ProDH). This electron transfer supports Complexes CIII and CIV, thus generating the protonm...

  • Article
  • Open Access
916 Views
16 Pages

22 August 2025

Lanthanide hydrogen-bonded organic frameworks (Ln-HOFs) integrating luminescent and proton-conductive properties hold significant promise for multifunctional sensing and energy applications, yet their development remains challenging due to the diffic...

  • Communication
  • Open Access
47 Citations
5,602 Views
12 Pages

Diketopiperazine and Diphenylether Derivatives from Marine Algae-Derived Aspergillus versicolor OUCMDZ-2738 by Epigenetic Activation

  • Wen Liu,
  • Liping Wang,
  • Bin Wang,
  • Yanchao Xu,
  • Guoliang Zhu,
  • Mengmeng Lan,
  • Weiming Zhu and
  • Kunlai Sun

22 December 2018

A chemical-epigenetic method was used to enhance the chemodiversity of a marine algicolous fungus. Apart from thirteen known compounds, (+)-brevianamide R ((+)-3), (‒)-brevianamide R ((‒)-3), (+)-brevianamide Q ((+)-4), (‒)-brevianamide Q ((‒)-4), br...

  • Article
  • Open Access
8 Citations
6,355 Views
20 Pages

Growth, Phytochemicals, and Antioxidant Activity of Kale Grown under Different Nutrient-Solution Depths in Hydroponic

  • Jiehui Tan,
  • Haozhao Jiang,
  • Yamin Li,
  • Rui He,
  • Kaizhe Liu,
  • Yongkang Chen,
  • Xinyang He,
  • Xiaojuan Liu and
  • Houcheng Liu

To explore the effect of different nutrient-solution depths on the growth and phytochemicals accumulation of kale, three different nutrient-solution depth treatments (De-1: 1 cm, De-2: 2 cm, and De-3: 3 cm) were applied in the plant factory with arti...

  • Article
  • Open Access
1,476 Views
25 Pages

The Antiproliferative Activity and NO Inhibition of Neo-Clerodane Diterpenoids from Salvia guevarae in RAW 264.7 Macrophages

  • Juan Pablo Torres-Médicis,
  • Celia Bustos-Brito,
  • Leovigildo Quijano,
  • Brenda Y. Bedolla-García,
  • Sergio Zamudio,
  • Teresa Ramírez-Apan,
  • Diego Martínez-Otero and
  • Baldomero Esquivel

In this study, nine neo-clerodane-type diterpenoids (19) were isolated from the dichloromethane extract of Salvia guevarae Bedolla & Zamudio leaves. Compounds 16 were new natural products, and 79 were acetone artifacts. In ad...