Publication number: 20070208048
Abstract: The invention provides Aryl substituted imidazoles, pyrazoles, pyridizines and related compounds of the Formula where the ring system represented by is a 5 membered heteroaryl ring system, in which x is 0, A is chosen from carbon and heteroatoms nitrogen, oxygen, and sulfur, and E and G are independently carbon or nitrogen provided that the 5 membered heteroaryl ring system does not contain more than 3 heteroatoms or more than 1 oxygen or sulfur atom, or a 6 membered heteroaryl ring system, in which x is 1, A, B, E, and G are independently chosen from carbon and nitrogen, provided that the 6 membered heteroaryl ring system does not contain more than 3 nitrogen atoms. The remaining variables, Ar1, Ar2, R, R1, R2, R3, R4, R5, R6, y and z are defined herein Such compounds are ligands of C5a receptors. Preferred compounds of the invention act bind to C5a receptors with high affinity and exhibit neutral antagonist or inverse agonist activity at C5a receptors.
Type:
Application
Filed:
March 1, 2007
Publication date:
September 6, 2007
Inventors:
George Luke, George Maynard, Scott Mitchell, Andrew Thurkauf, Linghong Xie, LuYan Zhang, Suoming Zhang, He Zhao, Bertrand Chenard, Yang Gao, Bingsong Han, Xiao He