Patent ID: 7879848

Claim:
A compound of the following formula (1) or pharmaceutically acceptable salt thereof: wherein A is a substituent of the following formula (5): wherein R 3 is hydrogen, or substituted or unsubstituted C 1 -C 4 alkyl, cycloalkyl, aryl or heteroaryl; and R′ 3 is hydrogen, or CF 3 ; B is selected from the group consisting of substituents of the following formulas (8) to (11): wherein R 7 , R 8 , R 9 and R 10 are each independently hydrogen, halogen, or substituted or unsubstituted C 1 -C 4 alkyl; wherein R 11 , R 12 and R 13 are each independently hydrogen, halogen, or substituted or unsubstituted C 1 -C 4 alkyl; and Y is oxygen, sulfur or SO 2; wherein R 14 and R 15 are each independently hydrogen, halogen, or substituted or unsubstituted C 1 -C 4 alkyl; and Z is —CH— or oxygen, where Z is oxygen, R 14 is nothing; and wherein R 17 is substituted or unsubstituted C 1 -C 4 alkyl, wherein the substituted C 1 -C 4 alkyl is substituted with halogen.