Discovery of novel neuronal voltage-Dependent calcium channel blockers based on emopamil left hand as a bioactive template
摘要:
A series of novel neuronal voltage-dependent calcium channel (VDCC) blockers, with inhibitory activity at low micromolar and moderate solubility in water, was discovered by constructing and screening a focused library based on emopamil (1) left hand (ELH) as a bioactive template. (C) 2003 Elsevier Science Ltd. All rights reserved.
Cyclophane, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung
申请人:Dr. Karl Thomae GmbH
公开号:EP0450429A1
公开(公告)日:1991-10-09
Die vorliegende Erfindung betrifft Cyclophane der allgemeinen Formel
in der
X₁, X₂, A, R und R₁ bis R₄ wie im Anspruch 1 definiert sind, deren Enantiomere, deren Diastereomere, deren Additionssalze, insbesondere für die pharmazeutische Anwendung deren physiologisch verträgliche Additionssalze, welche wertvolle Eigenschaften aufweisen, insbesondere wertvolle pharmakologische Eigenschaften wie eine blutdrucksenkende und coronardilatatierende sowie eine milde herzfrequenzsenkende Wirkung, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung.
Discovery of TD-4306, a long-acting β2-agonist for the treatment of asthma and COPD
作者:R. Murray McKinnell、Uwe Klein、Martin S. Linsell、Edmund J. Moran、Matthew B. Nodwell、Juergen W. Pfeiffer、G. Roger Thomas、Cecile Yu、John R. Jacobsen
DOI:10.1016/j.bmcl.2014.04.095
日期:2014.7
A multivalent approach focused on amine-based secondary binding groups was applied to the discovery of long-acting inhaled beta(2)-agonists. Addition of amine moieties to the neutral secondary binding group of an existing beta(2)-agonist series was found to provide improved in vivo efficacy, but also led to the formation of biologically active aldehyde metabolites which were viewed as a risk for the development of these compounds. Structural simplification of the scaffold and blocking the site of metabolism to prevent aldehyde formation afforded a potent series of dibasic beta(2)-agonists with improved duration of action relative to their monobasic analogs. Additional optimization led to the discovery of 29 (TD-4306), a potent and selective beta(2)-agonist with potential for once-daily dosing. (C) 2014 Elsevier Ltd. All rights reserved.
N,N-SUBSTITUTED CYCLIC AMINE DERIVATIVES
申请人:Eisai Co., Ltd.
公开号:EP1099692B1
公开(公告)日:2006-05-03
Synthesis and biological evaluation of benzopyran analogues bearing class III antiarrhythmic pharmacophores
We have synthesized a series of compounds combining the hydroxy-benzopyran ring of vitamin E with the methylsulfonylaminophenyl group of class III antiarrhythmic drugs, connected through tertiary amine moieties. Evaluation of the antiarrhythmic and antioxidant activity of the new compounds was carried out on isolated rat heart preparations using the non-recirculating Langendorff mode. The new analogues were present, at 10 mu M concentration, during ischemia and reperfusion. Selected compounds were further studied by a conventional microelectrode method in order to get insight into their cellular mode of action. The most active compound, N-[4-[2-[[2-(3,4-dihydro-6-hydroxy-2,2,7,8-tetramethyl-2H-1-benzopyran-5-yl)ethyl] methylamine]ethyl]phenyl]methanesulfonamide (19a), reduces premature beats, prolongs QT and QRS intervals during ischemia and reperfusion, and reduces MDA content, leading to a fast recovery of the heart. In addition, it exhibits moderate class III antiarrhythmic action. (c) 2006 Elsevier Ltd. All rights reserved.