| abstract |
A compound selected from those of formula (I): n nwherein:n X represents a C(O) or SO 2 group, R 1 represents an aryl group or a group NR 3 R 4 wherein R 3 and R 4 are as defined in the description, R 2 represents an alkyl, (C 3 -C 8 )cycloalkyl or (C 3 -C 8 )cycloalkyl-(C 1 -C 6 )alkyl group,n nits isomers, and addition salts thereof,n nand medicinal products containing the same which are useful in treating conditions treatable by antagonists of type H 3 central histamine receptors. |