C5a receptor antagonists

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

Reexamination Certificate

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Details

C564S047000

Reexamination Certificate

active

08071810

ABSTRACT:
The present invention is related to a compound, preferably a C5a receptor antagonist, having the following structure, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21 and R22 are individually and independently selected from the group comprising H, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, substituted cycloalkyl, heterocyclyl, substituted heterocyclyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl, substituted arylalkyl, heteroarylalkyl, substituted heteroarylalkyl, alkoxyl, substituted alkoxyl, aryloxy, substituted aryloxy, arylalkyloxy, substituted arylalkyloxy, acyloxy, substituted acyloxy, halogen, hydroxyl, nitro, cyano, acyl, substituted acyl, mercapto, alkylthio, substituted alkylthio, amino, substituted amino, alkylamino, substituted alkylamino, bisalkyl amino, substituted bisalkyl amino, cyclic amino, substituted cyclic amino, carbamoyl (—CONH2), substituted carbamoyl, carboxyl, carbamate, alkoxycarbonyl, substituted alkoxycarbonyl, acylamino, substituted acylamino, sulfamoyl (—SO2NH2), substituted sulfamoyl, haloalkyl, haloalkyloxy, —C(O)H, trialkylsilyl and azido.

REFERENCES:
patent: 7105567 (2006-09-01), Ishibuchi et al.
patent: 1 308 438 (2003-05-01), None
patent: 1308438 (2003-05-01), None
patent: 1 318 140 (2003-06-01), None
patent: WO 03/082826 (2003-10-01), None
Finch et al., “Low-Molecular-Weight Peptidic and Cyclic Antagonists of the Receptor for the Complement Factor C5a”, J. Med. Chem., 1999, 42, 1965-1974.

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