New modifications on the C-8 4-aminobenzyl unit of the previously reported 3-alkyl-1,8-dibenzylxanthine inhibitors of cPEPCK are presented. The most active compound reported here is the 5-chloro-1,3-dimethyl-1H-pyrazole-4-sulfonic acid amide derivative 2 with an IC(50) of 0.29+/-0.08 microM. An X-ray analysis of a heteroaromatic sulfonamide is presented showing a new pi-pi interaction.
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http://dx.doi.org/10.1016/j.bmcl.2007.05.013 | DOI Listing |
Phys Chem Chem Phys
December 2024
College of Physics, Sichuan University, Chengdu 610065, China.
The shortage of fossil energy and environmental crises are two important issues in the 21st century, and the search for alternatives to fossil fuels, H, is crucial. Herein, based on penta-germagraphene p-GeC, bilayer penta-carbides of p-GeC and nitrogen substituted materials p-GeNC are proposed. The results indicate that gradually replacing the carbon atoms on the surface of p-GeC with nitrogen atoms can change the surface activities and electronic structures, and this is beneficial for both photocatalysis and electrocatalysis.
View Article and Find Full Text PDFACS Omega
November 2024
School of Petroleum and Natural Gas Engineering, School of Energy, Changzhou University, Changzhou 213164, China.
Catalytic pyrolysis technology is a harmless and useful solid waste treatment method. Studying the catalytic pyrolysis of sludge for hydrogen production is of practical significance. Therefore, this paper prepared a bifunctional catalyst with both microwave absorption and catalytic properties from electroplating sludge through carbonization and acid modification processes and then was characterized by XRD, BET, SEM, XPS, and FTIR.
View Article and Find Full Text PDFRev Esp Cir Ortop Traumatol
November 2024
Unidad de Cadera, Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario La Paz, Madrid, España.
Purpose: The SL-Plus cementless stem was introduced in 1993 as an evolution of the Alloclassic® stem with some modifications. The aim of this study was to analyse if these modifications have any influence in clinical and radiological outcomes at minimum 10-year follow-up.
Methods: Sixty-eight consecutive implants (64 patients) were retrospective evaluated.
Bioorg Chem
December 2024
State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, NHC Key Laboratory of Biotechnology for Microbial Drugs, CAMS Key Laboratory of Synthetic Biology for Drug Innovation, and CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, No.1 Tiantan Xili, Beijing 100050, China. Electronic address:
Illuminated by insights into the hijacking of host cellular metabolism by coronaviruses, we identified an initial hit compound 7030B-C5, characterized by a xanthine scaffold, via a cellular-level phenotypic screening from a domestic repertoire of lipid-modulating agents. A series of derivatives were synthesized and optimized through comprehensive structure-activity relationship (SAR) studies focusing on the N-1, C-8, and N-7 positions of xanthine and preliminary exploration on the N-3 position and parent nucleus. Compounds 10e, 10f and 10o, featuring modifications at the N-7 position, showed inhibitory activity with half maximal effective concentration (EC) values in the three-digit nanomolar range against human coronavirus-229E (HCoV-229E).
View Article and Find Full Text PDFFront Microbiol
September 2024
Guangxi Key Laboratory for Polysaccharide Materials and Modifications, School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning, China.
Introduction: wilt of banana, also recognized as Panama disease, is caused by the soil-borne fungus f. sp. tropical race 4 (FOC TR4).
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