Patent ID: 8759352

Claim:
A 1-(4-ureidobenzoyl)piperazine derivative having the general formula I wherein R 1 is (C 1-8 )alkyl, (C 3-8 )cycloalkyl or (C 3-8 )cycloalkyl(C 1-3 )alkyl, each of which may be substituted by hydroxy, cyano or halogen; R 2 represents 1 or 2 optional halogens; R 3 is (C 1-6 )alkyl, (C 3-6 )cycloalkyl or (C 3-6 )cycloalkyl(C 1-3 )alkyl, each of which may be substituted by one or more halogens; A represents a heteroaryl ring system comprising 1-3 heteroatoms selected from N, O and S, which ring system is 5- or 6-membered when X is C, and 5-membered when X is N; n is 1 or 2; or a pharmaceutically acceptable salt thereof.