Patent ID: 8536210

Claim:
A compound of general formula of Ar—(CH 2 ) n —CR 1 ═N—OR 2 (I) or salt, hydrate or solvate thereof, wherein Ar is a group of the formula: R 1 is H or lower alkyl; R 2 is H, lower alkyl, benzyl, —(CH 2 ) k —COOR 13 , —(CH 2 ) m , —N(R 14 R 15 ) or —CO—NH—R 16 , wherein R 13 is lower alkyl, k is 1, 2 or 3; m is 1, 2 or 3; R 14 and R 15 are independently from each other lower alkyl, or R 14 and R 15 together with the nitrogen they are attached form a 5 to 7 membered heteroring, optionally containing 1 to 3 further heteroatom(s) selected from nitrogen, oxygen and sulfur atoms, R 16 is phenyl, optionally substituted with one or more group selected from halogen, lower alkyl and lower alkoxy; n is integer of 0 to 4; Ar 1 and Ar 2 are the same or different and stand for phenyl, optionally substituted with one or more group selected from halogen, lower alkyl and lower alkoxy.