| abstract |
A compound selected from those of formula (I): n nwhereinn m and n, which may be identical or different, each represent an integer from 0 to 2 inclusive, with the sum of the two integers being from 2 to 3 inclusive, p and q, which may be identical or different, each represent an integer from 0 to 2 inclusive, Alk represents an alkylene, alkenylene or alkynylene chain, X represents an oxygen atom, a sulphur atom or an —N(R)— group wherein R represents a hydrogen atom or an alkyl group, Y, Y′ and W are as defined in the description, its enantiomers, diastereoisomers, and addition salts thereof with one or more pharmaceutically acceptable acid or base. n Medicinal products containing the same which are useful for treating conditions associated with central histaminergic systems. |