Patent ID: 8829196

Claim:
A compound represented by Formula I: or a pharmaceutically acceptable salt thereof, a solvate, hydrate, stereoisomer, or enantiomer of the compound or its salt wherein: W represents CH 2 , or CHR 4 , U, X, Y, and Z independently represent CH 2 , R 2 represents hydrogen, or C 1-6 alkyl; R 5 represents hydrogen; one of R 3 and R 4 independently represents H or C 1-6 alkyl, and the other represents (CHR 2 ) n C 5-10 heterocyclyl, (CHR 2 ) n C 6-10 aryl, (CHR 2 ) n C 3-10 cycloalkyl, or C 1-6 alkyl; said alkyl, cycloalkyl, heterocyclyl and aryl optionally substituted with 1 to 3 groups of R a , wherein n=0 or 1; R a represents C 1-6 alkyl, halogen, hydroxyl, OR 2 , (CH 2 ) n CF 3 , C 3-6 cycloalkyl, C(O)N(R 2 ) 2 , C(R 2 ) 2 OR 2 , C(O)R 2 , NO 2 , CN, N(R 2 ) 2 , C(O)OR 2 , (CH 2 ) n C 5-10 heterocyclyl, or (CH 2 ) n C 6-10 aryl, said heterocyclyl and aryl optionally substituted with 1 to 3 groups of C 1-6 alkyl, halogen, hydroxyl, (CH 2 ) n CF 3 , or CN; and n represents 0 to 4.