The present invention concerns prodrugs of opioid analgesics and pharmaceutical compositions containing such prodrugs. Methods for providing more consistent pain relief by increasing the bioavailability of the opioid analgesic with the aforementioned prodrugs are provided. The invention also provides for decreasing the adverse GI side effects of opioid analgesics.
Activation of Sirtuin 2 Inhibitors Employing Photoswitchable Geometry and Aqueous Solubility
作者:Christoph W. Grathwol、Nathalie Wössner、Steven Behnisch‐Cornwell、Lukas Schulig、Lin Zhang、Oliver Einsle、Manfred Jung、Andreas Link
DOI:10.1002/cmdc.202000148
日期:2020.8.5
derivatization with long‐chain fatty acids yielded potent sirtuin2inhibitors, featuring another intriguing aspect of azo‐based photoswitches. In these compounds, switching to the Z isomer increased aqueoussolubility and thereby enhanced biological activity by up to a factor of 21. The biological activity of two compounds was confirmed by hyperacetylation of sirtuin specific histone proteins in a cell‐based activity
We report the synthesis of a novel C3-symmetrical multiphotochromic molecule bearing three azobenzene units at positions 1, 3, 5 of the central phenyl ring. The unique geometrical design of such a rigid scaffold enables the electronic decoupling of the azobenzene moieties to guarantee their simultaneous isomerization. Photoswitching of all azobenzenes in solution was demonstrated by means of UV-vis
Combiningphotochromic agonists of GPCR receptors with label-free impedanceanalysis of cells expressing this receptor allows monitoring and controlling dynamics and reversibility of intracellular signaling cascades in real time.
α,α-Difluorophosphonomethyl azobenzene derivatives as photo-regulated phosphoamino acid analogs. 1. Design and synthesis
作者:Seung Bum Park、Robert F. Standaert
DOI:10.1016/s0040-4039(99)01400-8
日期:1999.9
A series of novel, photoregulated phosphoamino acid analogs based on an azobenzene core bearing an alpha,alpha-difluoromethylphosphonate as a hydrolytically stable phosphate isostere have been prepared with N-Fmoc protection for use in peptide synthesis. Classes of reagents analogous to both phosphotyrosine and phosphoserine/threonine were prepared by a common route employing a nitrosoarene/aniline condensation to form the azo linkage and the Cu(I)promoted coupling of an iodoarene with (diethylphosphono)difluoromethyl cadmium bromide (Burton's method) to introduce the phosphonate moiety. (C) 1999 Elsevier Science Ltd. All rights reserved.