Patent ID: 7470683

Claim:
A compound selected from those of formula I, which has the trans relative configuration: wherein: X represents an oxygen atom or an NR 2 group, Y represents a group selected from —CH 2 —, —(CH 2 ) 2 — and —CH═CH—, R 1 and R 2 , which may be the same or different, each represents a hydrogen atom or a group selected from linear or branched C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, and C 3 -C 8 cycloalkyl C 1 -C 6 alkyl wherein the C 1 -C 6 alkyl moiety is linear or branched, in racemic form or in the form of optical isomers, and addition salts thereof with a pharmaceutically acceptable acid, and hydrates thereof.