SUBSTITUTED BRIDGED UREA ANALOGS AS SIRTUIN MODULATORS
申请人:GLAXOSMITHKLINE LLC
公开号:US20150152108A1
公开(公告)日:2015-06-04
The present invention relates to novel substituted bridged urea compounds, corresponding related analogs, pharmaceutical compositions and methods of use thereof. Sirtuin-modulating compounds of the present invention may be used for increasing the lifespan of a cell, and treating and/or preventing a wide variety of diseases and disorders, which include, but are not limited to, for example, diseases or disorders related to aging or stress, diabetes, obesity, neurodegenerative diseases, cardiovascular disease, blood clotting disorders, inflammation, cancer, and/or flushing as well as diseases or disorders that would benefit from increased mitochondrial activity. The present invention also related to compositions comprising a sirtuin-modulating compound in combination with another therapeutic agent.
Highly chemoselective reduction of azides to amines by Fe(0) nanoparticles in water at room temperature
作者:Subir Panja、Debasish kundu、Sabir Ahammed、Brindaban C. Ranu
DOI:10.1016/j.tetlet.2017.07.076
日期:2017.8
A highly chemoselective reduction of aryl, heteroaryl, acyl and sulfonylazides to the corresponding amines has been achieved by Fe(0) nanoparticles in water at roomtemperature in the absence of external hydride source. Several readily reducible functionalities including alkene, alkyne, S-S linkage, OTBDMS remain unaffected during reduction.
Highly selective reduction of nitroarenes by iron(0) nanoparticles in water
作者:Raju Dey、Nirmalya Mukherjee、Sabir Ahammed、Brindaban C. Ranu
DOI:10.1039/c2cc30999h
日期:——
Highly selective reduction of nitroarenes has been achieved using iron metal nanoparticles in water at room temperature. A wide spectrum of reducible functionalities remained inert under the reaction conditions. During the reaction a change in shape of Fe nanoparticles was observed.
involving [3+2] cycloaddition, 1,2-acyl migration and hydrolysis produces 2H-1,2,3-triazoles via the regioselective formation of N2-carboxyalkylated triazoles. The reaction proceeds in aqueousmedia through intriguing reaction kinetics using a CuI–prolinamide catalyst system. Prolinamide promotes the novel organocatalytic 1,2-acyl migration as well as hydrolysis of the resulting N2-carboxyalkylated triazoles
Palladium-catalyzed cross-coupling reaction of azides with isocyanides
作者:Zhen Zhang、Zongyang Li、Bin Fu、Zhenhua Zhang
DOI:10.1039/c5cc05981j
日期:——
A palladium-catalyzed cross-coupling reaction of azides with isocyanides is developed, providing a general synthetic route to unsymmetric carbodiimides.