Patent ID: 7713972

Claim:
A compound represented by the following formula (IA): wherein A is N or CR 4 ; B is N or CH; R 1 is substituted or unsubstituted cycloalkyl group or tert-butyl group; R 2 is a hydrogen atom or C 1 -C 6 alkyl group; R 3 is a hydrogen atom; intro group; cyano group; a halogen atom; heteroaryl group, wherein the heteroaryl group is pyrrole, furyl, thienyl, imidazolyl, thiazolyl, pyrazinyl, indolyl, quinolinyl, isoquinolinyl, tetrazolyl, pyridinyl, pyrazolyl, pyridazinyl, or pyrimidinyl; substituted or unsubstituted C 1 -C 6 alkyl group; substituted or unsubstituted C 2 -C 6 alkenyl group; saturated or unsaturated heterocycloalkyl group which is substituted or unsubstituted; a group: —NR 5 R 6 , —C(O)R 7 , —SO 2 R 7 , —OR 8 , —NR 8 COR 7 , —NR 8 SO 2 R 7 ; R 4 is a hydrogen atom or C 1 -C 3 alkoxy group which is unsubstituted or substituted by one or more fluorine atom(s); R 5 and R 6 are, same or different from each other, a hydrogen atom; substituted or unsubstituted C 1 -C 6 alkyl group; substituted or unsubstituted acyl group; or substituted or unsubstituted heterocycloalkyl group; R 7 is a hydrogen atom; substituted or unsubstituted C 1 -C 6 alkyl group; substituted or unsubstituted heterocycloalkyl group; OH; —OR 8 or —NR 5 R 6 ; R 8 is a hydrogen atom, substituted or unsubstituted C 1 -C 6 alkyl group; or substituted or unsubstituted heterocycloalkyl group; or pharmaceutically acceptable salts thereof.