Download full-text PDF

Source
http://dx.doi.org/10.1021/jo01269a017DOI Listing

Publication Analysis

Top Keywords

preparation nucleosides
4
nucleosides isopropylidene
4
isopropylidene sugar
4
sugar derivatives
4
derivatives synthesis
4
synthesis 9-beta-d-gulofuranosyladenine
4
9-beta-d-gulofuranosyladenine 9-alpha-l-lyxofuranosyladenine
4
preparation
1
isopropylidene
1
sugar
1

Similar Publications

and its major compound dieckol, both natural marine products, possess antioxidant, anti-inflammatory, and metabolic-regulating effects. Zika virus (ZIKV), an arbovirus from the family, is transmitted by mosquitoes and causes serious illnesses in humans. This study aimed to evaluate the anti-ZIKV potential of and dieckol.

View Article and Find Full Text PDF

Aim: There is an urgent need for new antimicrobial compounds with alternative modes of action for the treatment of drug-resistant bacterial and fungal pathogens.

Background: Carbohydrates and their derivatives are essential for biochemical and medicinal research because of their efficacy in the synthesis of biologically active drugs.

Objective: In the present study, a series of methyl α-D-mannopyranoside (MMP) derivatives (2-6) were prepared via direct acylation, and their biological properties were characterized.

View Article and Find Full Text PDF

[Current advances in the analysis of free RNA modified nucleosides by high performance liquid chromatography-tandem mass spectrometry].

Se Pu

January 2025

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;3. University of Chinese Academy of Sciences, Beijing 100049, China.

Post-transcriptional ribonucleic acid (RNA) modifications play crucial roles in regulating gene expression, with both eukaryotic and prokaryotic RNA exhibiting more than 170 distinct and ubiquitous modifications. RNA turnover generates numerous free nucleosides, including unmodified nucleosides and a variety of modified ones. Unlike unmodified nucleosides, modified nucleosides are not further degraded or used in the salvage-synthesis pathway owing to a lack of specific enzymes, which leads to the cytosolic accumulation or cellular efflux of modified nucleosides.

View Article and Find Full Text PDF

Identification and quality control of isomers in Huo-Xiang-Zheng-Qi Mixture using ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry and inductive effects analysis.

J Pharm Biomed Anal

December 2024

State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Institute of Collaborative Innovation in Great Health, College of Biotechnology and Food Science, Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300134, China. Electronic address:

Huo-Xiang-Zheng-Qi Mixture is a renowned traditional Chinese medicine formula used to treat ailments associated with dampness pathogens. This study employed ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry to perform a comprehensive qualitative and quantitative analysis of the chemical compounds in Huo-Xiang-Zheng-Qi Mixture. A total of 155 compounds were identified, including 61 flavonoids and their glycosides, 36 phenylethanoid glycosides, 23 saponins, 14 coumarins, 9 organic acids, 1 amino acid, 2 nucleosides and purines, and 9 additional compounds.

View Article and Find Full Text PDF

In this work, magnetic molecularly imprinted polymer (MMIP) capable of selectively recognizing and adsorbing cordycepin was prepared. The MMIP was prepared using cordycepin as the template molecule, methacrylic acid and acrylamide as the functional monomer and ethylene glycol dimethacrylate as the crosslinker. The MMIP was analyzed using various techniques including transmission electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, vibrating sample magnetometer and x-ray diffraction.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!