A mild and regioselective Ullmann reaction of indazoles with aryliodides has been developed as a general method for the synthesis of 1-aryl-1H-indazoles. Water was used as the solvent wherein Tween 20 (2% w/w) was added to form aqueous micelles to improve solubility of starting materials and accelerate reaction rate. This aqueous protocol allows the Ullmann reaction to proceed at a mild temperature
The present invention relates to azaspiro derivatives of the formula (I) or a pharmaceutically acceptable salt thereof or a prodrug thereof, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders which are mediated via the TRPM8 receptor.
[EN] AZACYCLYLBENZAMIDE DERIVATIVES AS HISTAMINE-3 ANTAGONISTS<br/>[FR] DÉRIVÉS D'AZACYCLYLBENZAMIDE EN TANT QU'ANTAGONISTES DE L'HISTAMINE-3
申请人:WYETH CORP
公开号:WO2008147945A1
公开(公告)日:2008-12-04
[EN] The present invention provides a compound of formula (I) and the use thereof for the treatment of a central nervous system disorder related to or affected by the histamine-3 receptor, wherein R3 and R4 are taken together with the atom to which they are attached to form an optionally substituted monocyclic 5-membered aromatic ring system optionally containing one or two additional heteroatoms selected from N, O or S or an optionally substituted fused bicyclic or tricyclic 9- to 15-membered aromatic ring system optionally containing one to three additional heteroatoms selected from N, O or S; and where R1, R2, R5, R6 and x are as defined herein. [FR] La présente invention concerne un composé de formule (I ) et son utilisation pour le traitement d'un trouble du système nerveux central lié à un récepteur de l'histamine-3 ou affecté par celui-ci. Dans ladite formule, R3 et R4 sont pris ensemble avec l'atome auquel ils sont rattachés pour former un système cyclique aromatique à 5 chaînons monocycliques éventuellement substitués contenant éventuellement un ou deux hétéroatomes sélectionnés parmi N, O ou S ou un système cyclique aromatique comprenant entre 9 et 15 éléments bicycliques ou tricycliques fusionnés éventuellement substitués contenant éventuellement un à trois hétéroatomes supplémentaires sélectionnés parmi N, O ou S; et R1, R2, R5, R6 et x sont tels que définis dans la description.
[EN] PYRAZOLE COMPOUND<br/>[FR] COMPOSÉ DE PYRAZOLE
AZACYCLYLBENZAMIDE DERIVATIVES AS HISTAMINE-3 ANTAGONISTS
申请人:Zhou Dahui
公开号:US20080293771A1
公开(公告)日:2008-11-27
The present invention provides a compound of formula I and the use thereof for the treatment of a central nervous system disorder related to or affected by the histamine-3 receptor