| 摘要 |
<p>The present invention is directed to 1H-4(5)-substituted imidazole derivates of formula (I), wherein A is (a); (b); or (c) where R1 is lower alkyl or lower alkoxy; R2, R3, R4, R5, R7 and R8 are each independently hydrogen or lower alkyl; R6 is hydrogen, lower alkyl or lower alkoxy and R5 and R6 can be joined to form a 4, 5 or 6 membered ring. The compounds of formula (I) have H3 histamine receptor agonist activity. The pharmaceutically acceptable salts, and individual stereoisomers of compounds of formula (I) above, as well as mixtures thereof, are also contemplated as falling within the scope of the present invention. The present invention also provides pharmaceutical compositions comprising a pharmaceutically acceptable carrier in combination with an effective amount of a compound of formula (I). The present invention also provides a method of treating conditions in which activation of histamine H3 receptors may be of therapeutic importance such as allergy, inflammation, cardio or cerebrovascular disease (i.e., hyper or hypotension, ischemia, stroke, migraine), gastrointestinal disorders (acid secretion, motility) and CNS disorders involving psychiatric disorders (i.e., including anxiety, manic/depressive disorder, schizophrenia, obsessive-compulsive disorders, etc.).</p> |
