Patent ID: 8796303

Claim:
A compound of formula (I), racemates, stereoisomers and/or salts thereof: wherein X 1 is N and X 2 is CH; R 1 is selected from a carbocyclic ring, a heterocyclic ring, an aromatic ring, a substituted carbocyclic ring, a substituted heterocyclic ring, and a substituted aromatic ring, wherein the substituent is one or more groups selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, halogen, halo C 1-6 alkyl, haloC 2-6 alkenyl, haloC 2-6 alkynyl, haloaryl, hydroxyl, C 1-6 alkylhydroxy, C 1-6 alkoxy, —OC 1-6 alkylhydroxy, —OC 1-6 alkylC 1-6 alkoxy, C 2-6 alkenyloxy, aryloxy, benzyloxy, haloC 1-6 alkoxy, haloC 2-6 alkenyloxy, haloaryloxy, nitro, nitroC 1-6 alkyl, nitroC 2-6 alkenyl, nitroC 2-6 alkynyl, nitroaryl, nitroheterocyclyl, amino, C 1-6 alkylamino, C 1-6 dialkylamino, C 2-6 alkenylamino, C 2-6 alkynylamino, arylamino, diarylamino, benzylamino, dibenzylamino, acyl, C 2-6 alkenylacyl, C 2-6 alkynylacyl, arylacyl, acylamino, diacylamino, acyloxy, alkylsulphonyloxy, arylsulphonyloxy, heterocyclyl, heterocyclyloxy, heterocyclylamino, haloheterocyclyl, alkylsulphonyl, arylsulphonyl, mercapto, C 1-6 alkylthio, benzylthio, and acylthio; R 2 is selected from C 1-6 alkyl, haloC 1-3 alkyl and C 1-3 alkoxy; and R 3 is H, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, halogen, haloC 1-6 alkyl, haloC 2-6 alkenyl, haloC 2-6 alkynyl, haloaryl, hydroxy, C 1-6 alkylhydroxy, C 1-6 alkoxy, —OC 1-6 alkylhydroxy, —OC 1-6 alkylC 1-6 alkoxy, C 2-6 alkenyloxy, aryloxy, benzyloxy, haloC 1-6 alkoxy, haloC 2-6 alkenyloxy, haloaryloxy, nitro, nitroC 1-6 alkyl, nitroC 1-6 alkenyl, nitroC 1-6 alkynyl, nitroC2-6alkenyl, nitroC2-6alkynyl, nitroaryl, nitroheterocyclyl, amino, C 1-6 alkylamino, C 1-6 dialkylamino, C 2-6 alkenylamino, C 2-6 alkynylamino, arylamino, diarylamino, benzylamino, dibenzylamino, acyl, C 2-6 alkenylacyl, C2-6alkynylacyl, arylacyl, acylamino, diacylamino, acyloxy, alkylsulphonyloxy, arylsulphonyloxy, heterocyclyl, heterocyclyloxy, heterocyclylamino, haloheterocyclyl, alkylsulphonyl, arylsulphonyl, mercapto, C 1-6 alkylthio, benzylthio, or acylthio.