Discovery of 5-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-7-phenyl-(E)-2,3,6,7-tetrahydro-1,4-thiazepines as a new series of apoptosis inducers using a cell- and caspase-based HTS assay
摘要:
We report the discovery of 5-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-7-(4-methylphenyl)-(E)-2,3,6,7-tetrahydro-1,4-thiazepine (2a) as an inducer of apoptosis using our proprietary cell- and caspase-based HTS assay. Through structure activity relationship (SAR) studies, 5-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-7-(2-methoxy-4-(methylthio)phenyl)-(E)-2,3,6,7-tetrahydro-1,4-thiazepine (5d) was identified as a potent apoptosis inducer with an EC50 value of 0.08 mu M in T47D cells, which was > 15-fold more potent than screening hit 2a. Compound 5d also was found to be highly active in a growth inhibition assay with a GI(50) value of 0.05 mu M in T47D cells and to function as an inhibitor of tubulin polymerization. (c) 2007 Elsevier Ltd. All rights reserved.
Effect of phenyl ring substitution on J-aggregate formation ability of novel bisazomethine dyes in vapour-deposited films
摘要:
Bisazomethine dyes, which are synthesized using diaminomaleonitrile and aminobenzaldehydes, exhibit red fluorescence in solution and in the solid state. Several bisazomethine dyes are known to form J-aggregates in vapour-deposited films. In this work, novel bisazomethine dyes were synthesized and the effect of phenyl ring substitution on the J-aggregate formation in vapour-deposited films was examined. The optical properties of the dyes were examined in solution and in the solid state through molecular orbital calculations. Four derivatives were found to form J-aggregates in vapour-deposited films as determined from the shape of the spectrum and the absorption edge. (C) 2010 Elsevier Ltd. All rights reserved.
Novel Thiophene Derivatives as Spingosine-1-Phosphate-1 Receptor Agonists
申请人:Bolli Martin
公开号:US20080194670A1
公开(公告)日:2008-08-14
The invention relates to novel thiophene derivatives, their preparation and their use as pharmaceutically active compounds. Said compounds particularly act as immunosuppressive agents.
[EN] USE OF AND SOME NOVEL IMIDAZOPYRIDINES<br/>[FR] NOUVELLES IMIDAZOPYRIDINES ET LEUR UTILISATION
申请人:ASTRAZENECA AB
公开号:WO2004016611A1
公开(公告)日:2004-02-26
The use of compounds of formula (I) wherein R1, R3, R10, m and Ar are as defined in the Specification and pharmaceutically acceptable salts thereof in the manufacture of a medicament for the treatment or prophylaxis of diseases or conditions in which inhibition of kinase Itk activity is beneficial is disclosed. Certain novel compounds of formula (I), together with processes for their preparation, compositions containing them and their use in therapy are also disclosed.
Cobalt-catalysed C–H methylation for late-stage drug diversification
作者:Stig D. Friis、Magnus J. Johansson、Lutz Ackermann
DOI:10.1038/s41557-020-0475-7
日期:2020.6
despite its significance, accessing such analogues via derivatization at a late stage remains a pivotal challenge. In an effort to mitigate this major limitation, we here present a strategy for the cobalt-catalysed late-stage C–H methylation of structurally complex drug molecules. Enabling broad applicability, the transformation relies on a boron-based methyl source and takes advantage of inherently present
Monofluoroalkenylation of Dimethylamino Compounds through Radical–Radical Cross‐Coupling
作者:Jin Xie、Jintao Yu、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1002/anie.201602347
日期:2016.8
An unprecedented and challenging radical–radicalcross‐coupling of α‐aminoalkyl radicals with monofluoroalkenyl radicals derived from gem‐difluoroalkenes was achieved. This first example of tandem C(sp3)−H and C(sp2)−F bond functionalization through visible‐light photoredox catalysis offers a facile and flexible access to privileged tetrasubstituted monofluoroalkenes under very mild reaction conditions
Improved PeT Molecules for Optically Sensing Voltage in Neurons
作者:Clifford R. Woodford、E. Paxon Frady、Richard S. Smith、Benjamin Morey、Gabriele Canzi、Sakina F. Palida、Ricardo C. Araneda、William B. Kristan、Clifford P. Kubiak、Evan W. Miller、Roger Y. Tsien
DOI:10.1021/ja510602z
日期:2015.2.11
VoltageFluor (VF) dyes have the potential to measure voltageoptically in excitable membranes with a combination of high spatial and temporal resolution essential to better characterize the voltage dynamics of large groups of excitable cells. VF dyes sense voltage with high speed and sensitivity using photoinduced electron transfer (PeT) through a conjugated molecular wire. We show that tuning the