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Isoxazole-pyridine derivatives

Inactive Publication Date: 2009-06-04
ROCHE PALO ALTO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, β-CCM and other conventional benzodiazepine receptor inverse agonists are proconvulsant or convulsant which prevents their use as cognition enhancing agents in humans.

Method used

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  • Isoxazole-pyridine derivatives
  • Isoxazole-pyridine derivatives
  • Isoxazole-pyridine derivatives

Examples

Experimental program
Comparison scheme
Effect test

example a

[0669]Tablets of the following composition can be manufactured in the usual manner:

mg / tabletActive substance5Lactose45Corn starch15Microcrystalline cellulose34Magnesium stearate1Tablet weight100

example b

[0670]Capsules of the following composition can be manufactured:

mg / capsuleActive substance10Lactose155Corn starch30Talc5Capsule fill weight200

[0671]The active substance, lactose and corn starch firstly can be mixed in a mixer and then in a comminuting machine. The mixture can be returned to the mixer; the talc then can be added thereto and mixed thoroughly. The mixture can be filled by machine into hard gelatine capsules.

example c

[0672]Suppositories of the following composition can be manufactured:

mg / supp.Active substance15Suppository mass1285Total1300

[0673]The suppository mass can melted in a glass or steel vessel, mixed thoroughly and cooled to 45° C. Thereupon, the finely powdered active substance can be added thereto and stirred until it has dispersed completely. The mixture then can be poured into suppository moulds of suitable size and left to cool; the suppositories then can be removed from the moulds and packed individually in wax paper or metal foil.

[0674]The following examples 1-372 are provided for illustration of the invention. They should not be considered as limiting the scope of the invention, but merely as being representative thereof.

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Abstract

The present invention is concerned with isoxazole-pyridine derivatives of formula Iwherein X, R1 to R6 are as described herein. The compounds are active on the GABA A α5 receptor binding site and useful for the treatment of cognitive disorders, such as Alzheimer's disease.

Description

PRIORITY TO RELATED APPLICATION(S)[0001]This application claims the benefit of European Patent Application No. 07122240.0, filed Dec. 4, 2007, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Receptors for the major inhibitory neurotransmitter, gamma-aminobutyric acid (GABA), are divided into two main classes: (1) GABA A receptors, which are members of the ligand-gated ion channel superfamily and (2) GABA B receptors, which are members of the G-protein linked receptor family. The GABA A receptor complex which is a membrane-bound heteropentameric protein polymer is composed principally of α, β and γ subunits.[0003]Presently a total number of 21 subunits of the GABA A receptor have been cloned and sequenced. Three types of subunits (α, β and γ) are required for the construction of recombinant GABA A receptors which most closely mimic the biochemical, electrophysiological and pharmacological functions of native GABA A receptors obtained from ma...

Claims

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Application Information

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IPC IPC(8): A61K31/541C07D413/02A61K31/4439C07D413/14C07D417/14C07D487/02A61P25/00A61K31/519A61K31/501A61K31/4545C07D295/00A61K31/5377
CPCC07D413/12C07D413/14C07D491/10C07D487/04C07D491/08C07D417/14A61P25/00A61P25/28A61P43/00A61K31/4427A61K31/42
Inventor BUETTELMANN, BERNDJAKOB-ROETNE, ROLANDKNUST, HENNERLUCAS, MATTHEW C.THOMAS, ANDREW
Owner ROCHE PALO ALTO LLC
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