Identification of 2-(2-(1-Naphthoyl)-8-fluoro-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)acetic Acid (Setipiprant/ACT-129968), a Potent, Selective, and Orally Bioavailable Chemoattractant Receptor-Homologous Molecule Expressed on Th2 Cells (CRTH2) Antagonist
摘要:
Herein we describe the discovery of the novel CRTh2 antagonist 2-(2-(1-naphthoyl)-8-fluoro-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)acetic acid 28 (setipiprant/ACT-129968), a clinical development candidate for the treatment of asthma and seasonal allergic rhinitis. A lead optimization program was started based on the discovery of the recently disclosed CRTh2 antagonist 2-(2-benzoyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)acetic acid 5. An already favorable and druglike profile could be assessed for lead compound 5. Therefore, the lead optimization program mainly focused on the improvement in potency and oral bioavailability. Data of newly synthesized analogs were collected from in vitro pharmacological, physicochemical, in vitro ADME, and in vivo pharmacokinetic studies in the rat and the dog. The data were then analyzed using a traffic light selection tool as a visualization device in order to evaluate and prioritize candidates displaying a balanced overall profile. This data-driven process and the excellent results of the PK study in the rat (F = 44%) and the dog (F = 55%) facilitated the identification of 28 as a potent (IC50 = 6 nM), selective, and orally available CRTh2 antagonist.
(1R,2R)-N-(1-Cyanocyclopropyl)-2-(6-methoxy-1,3,4,5-tetrahydropyrido[4,3-b]indole-2-carbonyl)cyclohexanecarboxamide (AZD4996): A Potent and Highly Selective Cathepsin K Inhibitor for the Treatment of Osteoarthritis
摘要:
Directed screening of nitrile compounds revealed 3 as a highly potent cathepsin K inhibitor but with cathepsin S activity and very poor stability to microsomes. Synthesis of compounds with reduced molecular complexity, such as 7, revealed key SAR and demonstrated that baseline physical properties and in vitro stability were in fact excellent for this series. The tricycle carboline P3 unit was discovered by hypothesis-based design using existing structural information. Optimization using small substituents, knowledge from matched molecular pairs, and control of lipophilicity yielded compounds very close to the desired profile, of which 34 (AZD4996) was selected on the basis of pharmacokinetic profile.
The present invention relates to compounds and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases, including cathepsins B, K, C, F, H, L, O, S, W and X. Of particular interest are diseases associated with Cathepsin K.
1-CYANOCYCLOPROPYL-DERIVATIVES AS CATHEPSIN K INHIBITORS
申请人:AstraZeneca AB
公开号:EP2170879A1
公开(公告)日:2010-04-07
US8008279B2
申请人:——
公开号:US8008279B2
公开(公告)日:2011-08-30
[EN] 1-CYANOCYCLOPROPYL-DERIVATIVES AS CATHEPSIN K INHIBITORS<br/>[FR] DÉRIVÉS DE 1-CYANOCYCLOPROPYLE UTILISÉS COMME INHIBITEURS DE LA CATHEPSINE K
申请人:ASTRAZENECA AB
公开号:WO2009001129A9
公开(公告)日:2010-02-04
[EN] The present invention relates to compounds of formula (I) and compositions for treating diseases associated with cysteine protease activity. The compounds are reversible inhibitors of cysteine proteases, including cathepsins B, K, C, F, H, L, O, S, W and X. Of particular interest are diseases associated with Cathepsin K. [FR] L'invention concerne des composés de la formule (I) et des compositions destinés au traitement de maladies associées à l'activité cystéine protéase. Les composés de l'invention sont des inhibiteurs réversibles des cystéine protéases, entre autres des cathepsines B, K, C, F, H, L, O, S, W et X. L'invention offre un intérêt particulier dans le traitement de maladies associées à la cathepsine K.
(1<i>R</i>,2<i>R</i>)-<i>N</i>-(1-Cyanocyclopropyl)-2-(6-methoxy-1,3,4,5-tetrahydropyrido[4,3-<i>b</i>]indole-2-carbonyl)cyclohexanecarboxamide (AZD4996): A Potent and Highly Selective Cathepsin K Inhibitor for the Treatment of Osteoarthritis
作者:Alexander G. Dossetter、Howard Beeley、Jonathan Bowyer、Calum R. Cook、James J. Crawford、Jonathan E. Finlayson、Nicola M. Heron、Christine Heyes、Adrian J. Highton、Julian A. Hudson、Anja Jestel、Peter W. Kenny、Stephan Krapp、Scott Martin、Philip A. MacFaul、Thomas M. McGuire、Pablo Morentin Gutierrez、Andrew D. Morley、Jeffrey J. Morris、Ken M. Page、Lyn Rosenbrier Ribeiro、Helen Sawney、Stefan Steinbacher、Caroline Smith、Madeleine Vickers
DOI:10.1021/jm3007257
日期:2012.7.26
Directed screening of nitrile compounds revealed 3 as a highly potent cathepsin K inhibitor but with cathepsin S activity and very poor stability to microsomes. Synthesis of compounds with reduced molecular complexity, such as 7, revealed key SAR and demonstrated that baseline physical properties and in vitro stability were in fact excellent for this series. The tricycle carboline P3 unit was discovered by hypothesis-based design using existing structural information. Optimization using small substituents, knowledge from matched molecular pairs, and control of lipophilicity yielded compounds very close to the desired profile, of which 34 (AZD4996) was selected on the basis of pharmacokinetic profile.