Patent ID: 8809376

Claim:
A compound of formula (I) wherein: R 1 is phenyl-CH 2 — or heteroaryl-CH 2 —, wherein the phenyl ring and the heteroaryl ring thereof are optionally independently substituted with 1 to 5 R 3 groups, and both —CH 2 — moieties are optionally substituted with 1 or 2 H 3 C— groups, wherein heteroaryl is a 5-membered heteroaromatic ring which contains 1 —NH— group, 1 —O—, or 1 —S— atom, or a 5-membered heteroaromatic ring which contains 1 —NH— group, 1 —O— or —S— atom and additionally 1 or 2 ═N— atoms, or a 6-membered heteroaromatic ring which contains 1, 2, or 3 ═N— atoms; R 2 is F, Cl, Br, NC—, F 2 HC—, F 3 C—, F 2 HC—O—, or F 3 C—O—; R 3 is F, Cl, Br, I, NC—, O 2 N—, H 2 N—, C 1-4 -alkyl-NH—, (C 1-4 -alkyl) 2 N—, C 1-4 -alkyl, C 2-4 -alkenyl, C 2-4 -alkinyl, HO—, HO—C 1-4 -alkyl, C 1-4 -alkyl-O—, C 1-4 -alkyl-O—C 1-4 -alkyl, C 1-4 -alkyl-S—, C 1-4 -alkyl-S(═O)—, C 1-4 -alkyl-S(═O) 2 —, —C 3-6 cycloalkyl-, or C 3-6 -cycloalkyl-O—, wherein any alkyl and cycloalkyl group or submoiety is optionally substituted with 1 to 5 fluorine atoms; and m is 1 or 2; wherein any alkyl group or sub-group is straight-chained or branched unless otherwise specified, or a salt thereof.