Patent ID: 7582794

Claim:
A compound of formula (IV) wherein X 1 is halogen, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, trifluoromethyl, aryl, heterocyclyl or heteroaryl, wherein said aryl, heterocyclyl and heteroaryl may in turn be at least monosubstituted by C 1 -C 3 -alkyl, C 1 -C 3 -alkoxy, halogen or trifluoromethyl; X 2 is C 1 -C 6 -alkyl, trifluoromethyl, aryl, heterocyclyl or heteroaryl, wherein said aryl, heterocyclyl and heteroaryl may in turn be at least monosubstituted by C 1 -C 3 -alkyl, C 1 -C 3 -alkoxy, halogen or trifluoromethyl; wherein heteroaryl is a 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13 or 14-membered, aromatic, mono-, bi- or tricyclic heterocycle which contains one or more heteroatoms selected from N, O and S; wherein aryl is a 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13 or 14-membered, aromatic mono-, bi- or tricyclic system; wherein heterocyclyl is a 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13 or 14-membered, nonaromatic, mono-, bi- or tricyclic heterocycle which contains one or more heteroatoms selected from N, O and S; m is 0, 1, 2, 3 or 4; and n is 1, 2, 3 or 4; with the proviso that the compound of formula IV cannot be 2-(3-hydroxy-4-methoxyphenoxymethyl)benzoic acid.