- Discovery and Optimization of 1-Phenoxy-2-aminoindanes as Potent, Selective, and Orally Bioavailable Inhibitors of the Na+/H+ Exchanger Type 3 (NHE3)
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The design, synthesis, and structure-activity relationship of 1-phenoxy-2-aminoindanes as inhibitors of the Na+/H+ exchanger type 3 (NHE3) are described based on a hit from high-throughput screening (HTS). The chemical optimization resulted in the discovery of potent, selective, and orally bioavailable NHE3 inhibitors with 13d as best compound, showing high in vitro permeability and lacking CYP2D6 inhibition as main optimization parameters. Aligning 1-phenoxy-2-aminoindanes onto the X-ray structure of 13d then provided 3D-QSAR models for NHE3 inhibition capturing guidelines for optimization. These models showed good correlation coefficients and allowed for activity estimation. In silico ADMET models for Caco-2 permeability and CYP2D6 inhibition were also successfully applied for this series. Moreover, docking into the CYP2D6 X-ray structure provided a reliable alignment for 3D-QSAR models. Finally 13d, renamed as SAR197, was characterized in vitro and by in vivo pharmacokinetic (PK) and pharmacological studies to unveil its potential for reduction of obstructive sleep apneas.
- Rackelmann, Nils,Matter, Hans,Englert, Heinrich,Follmann, Markus,Maier, Thomas,Weston, John,Arndt, Petra,Heyse, Winfried,Mertsch, Katharina,Wirth, Klaus,Bialy, Laurent
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p. 8812 - 8829
(2016/10/22)
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- COMPOUNDS AND METHODS FOR INHIBITING NHE-MEDIATED ANTIPORT IN THE TREATMENT OF DISORDERS ASSOCIATED WITH FLUID RETENTION OR SALT OVERLOAD AND GASTROINTESTINAL TRACT DISORDERS
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The present disclosure is directed to compounds and methods for the treatment of disorders associated with fluid retention or salt overload, such as heart failure (in particular, congestive heart failure), chronic kidney disease, end-stage renal disease,
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Page/Page column 102; 103
(2014/03/25)
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- Indanyl-Substituted 4,5,6,7-Tetrahydro-1H-Pyrazolo[4,3-C]Pyridines, Their Use as Medicament, and Pharmaceutical Preparations Comprising Them
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The invention relates to substituted 4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridines of formula (I), their use as medicament, and pharmaceutical preparations comprising them. The compounds of formula (I) act on the TASK-1 potassium channel. The compounds are particularly suitable for the treatment or prevention of atrial arrhythmias, for example atrial fibrillation (AF) or atrial flutter.
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Paragraph 0143; 0144; 0145; 0146; 0147; 0148; 0149; 0150
(2015/01/07)
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- INDANYL-SUBSTITUTED 4,5,6,7-TETRAHYDRO-1H-PYRAZOLO[4,3-C]PYRIDINES, THEIR USE AS MEDICAMENT, AND PHARMACEUTICAL PREPARATIONS COMPRISING THEM
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The invention relates to substituted 4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridines of formula (I), their use as medicament, and pharmaceutical preparations comprising them. The compounds of formula I act on the TASK-1 potassium channel. The compounds are suitable for the treatment or prevention of atrial arrhythmias, for example atrial fibrillation (AF) or atrial flutter.
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Page/Page column 43
(2013/03/28)
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- INDANYL-SUBSTITUTED 4,5,6,7-TETRAHYDRO-1H-PYRAZOLO[4,3-C]PYRIDINES, THEIR USE AS MEDICAMENT, AND PHARMACEUTICAL PREPARATIONS COMPRISING THEM
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The invention relates to substituted 4,5,6,7-tetrahydro-1 H-pyrazolo[4,3-c]pyridines of formula (I), their use as medicament, and pharmaceutical preparations comprising them. The compounds of formula (I) act on the TASK-1 potassium channel. The compounds are particularly suitable for the treatment or prevention of atrial arrhythmias, for example atrial fibrillation (AF) or atrial flutter.
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Page/Page column 41-42
(2013/03/28)
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