Patent number: 7910590
Abstract: Disclosed are novel compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein R1 is X is —O—, —C(R 14)2— or —N(R)—; Z is —C(R14)2— or —N(R)—; t is 0, 1, 2 or 3; each R and R2 is independently H, alkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, alkenyl or alkynyl; each R14 is H, alkyl, alkenyl, alkynyl, halo, —CN, haloalkyl, cycloalkyl, cycloalkylalkyl, aryl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, heterocycloalkylalkyl, —OR35, —N(R24)(R25) or —SR35; R41 is alkyl, cycloalkyl, —SO2(alkyl), —C(O)-alkyl, —C(O)-cycloalkyl or -alkyl-NH—C(O)CH3; and the remaining variables are as defined in the specification. Also disclosed are pharmaceutical compositions comprising the compounds of formula I and methods of treating cognitive or neurodegenerative diseases with compounds of formula I.
Type:
Grant
Filed:
June 24, 2009
Date of Patent:
March 22, 2011
Assignee:
Schering Corporation
Inventors:
Ying Huang, Guoqing Li, Ulrich Iserloh, Andrew Stamford, Corey Strickland, Johannes H. Voigt, Jianping Pan
Publication number: 20100311749
Abstract: The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof: wherein: A is C1-6alkyl, C3-6cycloalkyl, —CH2—R6, —CHMe-R7, —CMe2-R7, or optionally substituted aryl; wherein, when A is optionally substituted aryl, said aryl group is optionally substituted with 1 to 3 substituents, which may be the same or different, selected from the group consisting of halogen, C1-6alkyl, —CF3, C1-4alkoxy, C1fluoroalkoxy, cyano, NR8R9, and pyridyl wherein the pyridyl is optionally substituted by one methyl; R1 is chlorine, fluorine, —CF3, cyano or C1-6alkyl; R2, R3 and R5 independently are hydrogen, fluorine, chlorine, —CF3, cyano or C1-6alkyl, such that at least one of R2, R3 and R5 is other than hydrogen; R4 is hydrogen. These compounds and salts are thought to be P2X7 receptor antagonists. The invention also provides for the treatment of pain, inflammation, rheumatoid arthritis, osteoarthritis, or a neurodegenerative disease.
Type:
Application
Filed:
October 24, 2008
Publication date:
December 9, 2010
Inventors:
Laura Jane Chambers, Katharine Laura Collis, David Kenneth Dean, Jorge Munoz-Muriedas, Jon Graham Anthony Steadman, Daryl Simon Walter