Abstract:
Un compuesto representado por la estructura de fórmula 1:**Fórmula** o una sal farmacéuticamente aceptable del mismo; para su uso en medicina.
Abstract:
A method of treating coronavirus infection. The method includes administering to a subject suffering from or being at risk of suffering from such infection an effective amount of a compound of formula (I). Each variable in this formula is defined in the specification.
Abstract:
Novel dual-targeted, bifunctional anti-influenza drugs formed by conjugation with anti-inflammatory agents are disclosed. Exemplary drugs according to the invention include caffeic acid (CA)-bearing zanamivir (ZA) conjugates ZA-7-CA (1), ZA-7-CA-amide (7) and ZA-7-Nap (43) for simultaneous inhibition of influenza virus neuraminidase and suppression of proinflammatory cytokines. Synthetic methods for preparation of these enhanced anti- influenza conjugate drugs are provided. The synthetic bifunctional ZA conjugates act synergistically towards protection of mice lethally infected by H1N1 or H5N1 influenza viruses. The efficacy of ZA-7-CA, ZA-7-CA-amide and ZA-7-Nap conjugates is much greater than the combination therapy of ZA with anti-inflammatory agents.
Abstract:
Novel phosphonate compounds are described. The compounds have activity as neuraminidase inhibitors against wild-type and H274Y mutant of H1N1 and H5N1 viruses. The present disclosure also provides an enantioselective synthetic route to known neuraminidase inhibitors oseltamivir and the anti-flu drug Tamiflu®, as well as novel phosphonate compounds, via D-xylose. Another efficient and flexible synthesis of Tamiflu and the highly potent neuraminidase inhibitor Tamiphosphor was also achieved in 11 steps and > 20% overall yields from the readily available fermentation product (1S-cis)-3-bromo-3,5-cyclohexadiene-1,2-diol. Most of the reaction intermediates were obtained as crystals without tedious purification procedures. The key transformations include an initial regio-- and stereoselective bromoamidation of a bromoarene cis- dihydrodiol, as well as the final palladium-catalyzed carbonylation and phosphonylation.
Abstract:
Novel phosphonate compounds are described. The compounds have activity as neuraminidase inhibitors against wild-type and H274Y mutant of H1N1 and H5N1 viruses. The present disclosure also provides an enantioselective synthetic route to known neuraminidase inhibitors oseltamivir and the anti-flu drug Tamiflu®, as well as novel phosphonate compounds, via D-xylose. Another efficient and flexible synthesis of Tamiflu and the highly potent neuraminidase inhibitor Tamiphosphor was also achieved in 11 steps and > 20% overall yields from the readily available fermentation product (1
Abstract:
The present disclosure relates to synthetic alpha-galactosyl ceramide (a- GalCer) analogs, and their use as immunotherapies, adjuvants, and antiviral, antibacterial, and anticancer agents. In one aspect, a method of activating a cytokine response in a subject includes administering an effective amount of a compound to a subject, wherein the subject has an adaptive immune system that includes a population of cells, the population including at least one lymphocyte and at least one antigen-presenting cell, and wherein the compound is represented by the structure of formula 1 :; or a pharmaceutically acceptable salt thereof; forming a complex between the compound and the antigen-presenting cell, wherein the formation of the complex results in the activation of a receptor on the lymphocyte; and activating the lymphocyte to produce the cytokine response.
Abstract:
Se describen novedosos fármacos anti-influenza bi-funcionales, de doble enfoque, formados mediante conjugación con agentes anti-inflamatorios. Fármacos ejemplares de acuerdo con la invención incluyen conjugados de zanamivir (ZA) que porta ácido cafeico (CA) ZA-7-CA (1), ZA-7-CA-amida (7) y ZA-7-Nap (43) para inhibición simultánea de neuraminidasa de virus de influenza y supresión de citosinas proinflamatorias. Se proporcionan métodos sintéticos para la preparación de estos fármacos conjugados anti-influenza mejorados. Los conjugados de ZA bifuncionales sintéticos actúan sinérgicamente hacia la protección de ratones infectados letalmente por virus de influenza H1N1 o H5N1. La eficacia de conjugados ZA-7-CA, ZA-7-CA-amida y ZA-7-Nap es mucho mayor que la terapia de combinación de ZA con agentes anti-inflamatorios.
Abstract:
Novel dual-targeted, bifunctional anti-influenza drugs formed by conjugation with anti-inflammatory agents are disclosed. Exemplary drugs according to the invention include caffeic acid (CA)-bearing zanamivir (ZA) conjugates ZA-7-CA (1), ZA-7-CA-amide (7) and ZA-7-Nap (43) for simultaneous inhibition of influenza virus neuraminidase and suppression of proinflammatory cytokines. Synthetic methods for preparation of these enhanced anti- influenza conjugate drugs are provided. The synthetic bifunctional ZA conjugates act synergistically towards protection of mice lethally infected by H1N1 or H5N1 influenza viruses. The efficacy of ZA-7-CA, ZA-7-CA-amide and ZA-7-Nap conjugates is much greater than the combination therapy of ZA with anti-inflammatory agents.