Patent ID: 8785442

Claim:
A compound of Formula (I): or a pharmaceutically acceptable salt, solvate, or prodrug thereof, wherein, when R 4 is H, R 1 is C(═O)R 5 or SO 2 R 5 ; or R 4 and NHR 1 , together with the two C atoms of the phenyl ring to which R 4 and NHR 1 are respectively attached, form a fused saturated, partially saturated or unsaturated 5-7 membered heterocycle which optionally contains 1-2 heteroatoms selected from N, O or S in addition to the N atom shown; each R 2 and R 3 is independently selected from H, F, Cl, Br, CN, OH, or C 1 -C 4 alkyl; R 5 is C 1 -C 6 alkyl, C 1 -C 6 aryl, C 1 -C 6 alkoxyl, C 3-6 cycloalkyl, 5 or 6 membered heteroaryl containing 1-2 heteroatoms selected from N, O or S; 5-6 membered heterocyclyl containing 1-2 heteroatoms selected from N, O or S, wherein C 1 -C 6 alkyl, C 1 -C 6 aryl, C 1 -C 6 alkoxyl, C 3-6 cycloalkyl, 5 or 6 membered heteroaryl and 5-6 membered heterocyclyl are optionally substituted with F, Cl, Br, I, —CN, —C(═O)—OH, —C(═O)—O—C 1-6 alkyl, —S(═O) 2 —C 1-6 alkyl; each m and n is 0, 1 or 2.