Discovery of 2-methylpyridine-based biaryl amides as γ-secretase modulators for the treatment of Alzheimer’s disease
摘要:
gamma-Secretase modulators (GSMs) are potentially disease-modifying treatments for Alzheimer's disease. They selectively lower pathogenic A beta 42 levels by shifting the enzyme cleavage sites without inhibiting gamma-secretase activity, possibly avoiding known adverse effects observed with complete inhibition of the enzyme complex. A cell-based HTS effort identified the sulfonamide 1 as a GSM lead. Lead optimization studies identified compound 25 with improved cell potency, PKDM properties, and it lowered A beta 42 levels in the cerebrospinal fluid ( CSF) of Sprague-Dawley rats following oral administration. Further optimization of 25 to improve cellular potency is described. (C) 2013 Elsevier Ltd. All rights reserved.
The P2X3 receptor is an attractive target for the treatment of pain and chronic coughing, and thus P2X3 antagonists have been developed as new therapeutic drugs. We previously reported selective P2X3 receptorantagonists by derivatization of hit compound 1. As a result, we identified hit compound 3, the structure of which was similar to hit compound 1. On the basis of SAR studies of hit compound 1
The present invention relates to compounds of formula I:
wherein R
1
, R
2
and R
3
are as defined herein and pharmaceutically acceptable salts thereof The invention also relates to methods of using the compounds of formula I and pharmaceutical compositions comprising the compounds of formula I.
[EN] NEW COMPOUNDS MODULATING GAMMA-SECRETASE AND THEIR USE IN THE TREATMENT OF ALPHA BETA RELATED PATHOLOGIES, SUCH AS ALZHEIMER'S DISEASE<br/>[FR] NOUVEAUX COMPOSÉS MODULANT LA GAMMA-SECRÉTASE ET LEUR UTILISATION DANS LE TRAITEMENT DES PATHOLOGIES ASSOCIÉES AUX ALPHA BÊTA, TELLES QUE LA MALADIE D'ALZHEIMER
申请人:ASTRAZENECA AB
公开号:WO2010132015A1
公开(公告)日:2010-11-18
The present invention relates to novel compounds of formulae (I) and (II) and therapeutically acceptable salts thereof, their pharmaceutical compositions processes for making them and their use in therapeutic methods for treatment and/or prevention of various diseases. In particular, the invention relates to compounds which interfere with γ-secretase and/or its substrate and hence modulate the formation of Aβ peptides.
Compounds according to Formula (I) below:
wherein R
1
, R
2
, R
3
, and R
4
are as defined in the specification, pharmaceutically-acceptable salts, methods of making, pharmaceutical compositions containing and methods for using the same.
A compound represented by formula (1) (in the formula: ring-D represents a three- to eight-membered hydrocarbon ring; R
a
represents an optionally substituted amino C
1-6
alkyl group or the like; R
b1
and R
b2
each independently represent a hydrogen atom, a halogen atom, or the like; R
c
represents an optionally substituted C
6-10
aryl group or the like; R
d
represents a hydrogen atom or the like; and ring-Q represents a (hetero)aryl group or the like which may be substituted with a carboxyl group or the like) or a pharmaceutically acceptable salt thereof exhibits an excellent FXIa inhibitory activity, and is useful as a therapeutic agent against thrombosis or the like.