This invention concerns the compounds of formula
or a prodrug, a N-oxide, an addition salt, a quaternary amine or a stereochemically isomeric form thereof wherein R
1
, R
2
, —A—B—, L, and n have the meaning given in the description. The invention relates to preparations and compositions of the present compounds and their use as medicines.
Norpiperidine Imidazoazepines as a New Class of Potent, Selective, and Nonsedative H<sub>1</sub> Antihistamines
作者:Frans Janssens、Jos Leenaerts、Gaston Diels、Benoît De Boeck、Anton Megens、Xavier Langlois、Koen van Rossem、Johan Beetens、Marcel Borgers
DOI:10.1021/jm049495j
日期:2005.3.1
Clinical doses of available H(1) antihistamines are limited mainly by sedative side effects. However, higher doses are often required to obtain optimal therapeutic activity, especially in dermatology. We report the synthesis of three norpiperidine imidazoazepines representative of a newclass of selective and nonsedating H(1) antihistamines. The compounds were at least as potent as cetirizine and loratadine