The present invention relates to compounds of formula I and their pharmaceutically acceptable salts wherein in formula I is:
wherein R
1
to R
4
are as defined in the description and claims. The compounds of the present invention are useful for the treatment and/or prevention of diseases which are associated with the modulation of histamine 3 (H3) receptors.
Novel Methods for Preparation of (+)-1-ethyl-4-[2-(4-morpholinyl)ethyl)-3,3-diphenyl-2-pyrrolidinone and Salts Thereof
申请人:Dax Scott L.
公开号:US20130109854A1
公开(公告)日:2013-05-02
The present invention includes a method of preparing a composition comprising (+)-doxapram or a salt thereof, wherein the composition is essentially free of (−)-doxapram or a salt thereof.
[EN] 1H-INDOL-5-YL-PIPERAZIN-1-YL-METHANONE DERIVATIVES<br/>[FR] DÉRIVÉS DE 1H-INDOL-5-YL-PIPÉRAZIN-1-YL-MÉTHANONE
申请人:HOFFMANN LA ROCHE
公开号:WO2007131907A2
公开(公告)日:2007-11-22
[EN] The present invention relates to compounds of formula (1) wherein R1 to R4 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors. [FR] La présente invention concerne des composés de formule (1), où R1 à R4 sont tels que définis dans la description et les revendications, ainsi que les sels de qualité pharmaceutique desdits composés. Lesdits composés peuvent être employés dans le traitement prophylactique et/ou thérapeutique de maladies liées à la modulation des récepteurs H3.