Synthesis and Activity of Novel and Selective IKs-Channel Blockers
摘要:
Since the discovery of the I-Ks-potassium channel as the slowly activating component of the delayed rectifier current (I-k) in cardiac tissue, the search for blockers of this current has been intense. During the screening of K-ATP-channel openers of the chromanol type we found that chromanol 293B was able to block I-Ks. Chromanol 293B is a sulfonamide analogue of the K-ATP-channel openers but had no activity on this target. Experiments were initiated to improve the activity and properties based on this lead compound. As a screening model we used Xenopus oocytes injected with human minK (KCNE1). Variations of the aromatic substituent and the sulfonamide group were prepared, and their activity was evaluated. We found that the greatest influence on activity was found in the aromatic substituents. The most active compounds were alkoxy substituted. We chose HMR1556 ((3R, 4S)-(+)-N-[-3-hydroxy-2,2-dimethyl-6-(4,4,4-trifluorobutoxy)chroman-4-yl]-N-methyl-ethanesulfonamide) 10a for development as an antiarrhythmic drug. The absolute configuration, resulting from an X-ray single-crystal structure analysis, was determined.
Sulfonamid-substituierte Benzopyranderivate, Verfahren zu ihrer Herstellung, ihre Verwendung als Medikament sowie sie enthaltende pharmazeutische Zubereitungen
申请人:Aventis Pharma Deutschland GmbH
公开号:EP0913396B1
公开(公告)日:2003-09-17
US6008245A
申请人:——
公开号:US6008245A
公开(公告)日:1999-12-28
[EN] NOVEL BENZOPYRAN COMPOUNDS AND PROCESS FOR THEIR PREPARATION AND USE<br/>[FR] DERIVES DE CHROMANE EN TANT QU'AGONISTES DU RECEPTEUR BETA 3 ADRENERGIQUE
申请人:GLENMARK PHARMACEUTICALS LTD
公开号:WO2003014113A1
公开(公告)日:2003-02-20
Novel benzopyran compounds that are useful as beta 3-adrenergic receptor agonists, pharmaceutical compositions containing these compounds, and processes for their preparation and use.
Sulfonamide-substituted benzopyran derivatives, processes for their
申请人:Hoechst Marion Roussel Deutschland GmbH
公开号:US06008245A1
公开(公告)日:1999-12-28
Sulfonamide-substituted benzopyran derivatives, processes for their preparation, their use as a medicament, and pharmaceutical preparations comprising them Compounds of the formula I ##STR1## having the meanings of the substituents indicated in the claims are outstandingly active substances for the production of medicaments for the prophylaxis and for the therapy of cardiovascular disorders, in particular arrhythmias, for the treatment of ulcers of the gastrointestinal region or for the treatment of diarrheal diseases.
Synthesis and Activity of Novel and Selective I<sub>Ks</sub>-Channel Blockers
作者:Uwe Gerlach、Joachim Brendel、Hans-Jochen Lang、Erich F. Paulus、Klaus Weidmann、Andrea Brüggemann、Andreas E. Busch、Hartmut Suessbrich、Markus Bleich、Rainer Greger
DOI:10.1021/jm0109255
日期:2001.11.1
Since the discovery of the I-Ks-potassium channel as the slowly activating component of the delayed rectifier current (I-k) in cardiac tissue, the search for blockers of this current has been intense. During the screening of K-ATP-channel openers of the chromanol type we found that chromanol 293B was able to block I-Ks. Chromanol 293B is a sulfonamide analogue of the K-ATP-channel openers but had no activity on this target. Experiments were initiated to improve the activity and properties based on this lead compound. As a screening model we used Xenopus oocytes injected with human minK (KCNE1). Variations of the aromatic substituent and the sulfonamide group were prepared, and their activity was evaluated. We found that the greatest influence on activity was found in the aromatic substituents. The most active compounds were alkoxy substituted. We chose HMR1556 ((3R, 4S)-(+)-N-[-3-hydroxy-2,2-dimethyl-6-(4,4,4-trifluorobutoxy)chroman-4-yl]-N-methyl-ethanesulfonamide) 10a for development as an antiarrhythmic drug. The absolute configuration, resulting from an X-ray single-crystal structure analysis, was determined.