A New Method of α-Functionalization for Tertiary Amines by Nucleophilic Substitution of α-Siloxy Amines
作者:Norihiro Tokitoh、Renji Okazaki
DOI:10.1246/bcsj.61.735
日期:1988.3
α-Siloxy amines, which were easily prepared by “silicon Polonovski reaction” of tertiary amine N-oxides with trialkylsilyl trifluoromethanesulfonate, were treated with various nucleophiles to give the corresponding α-functionalized tertiary amines in moderate to good yields. This new method has the advantage that it enables the α-substitution of amines not only by alkyl groups but also by alkenyl and
Nucleophilic substitution reaction of α-siloxyamines with organometallics: a new method for α-substitution of tertiary amines via their n-oxides
作者:Norihiro Tokitoh、Renji Okazaki
DOI:10.1016/s0040-4039(01)91231-6
日期:1984.1
α-Siloxyamines obtained from tertiaryaminesvia their N-oxides react with Grignard reagents and trialkylaluminums to afford newtertiaryamines having an α-substituent derived from the organometallics.
[EN] 6-HALO-PYRAZOLO[1, 5-A]PYRIDINES, A PROCESS FOR THEIR PREPARATION AND THEIR USE AS METABOTROPIC GLUTAMATE RECEPTOR (MGLUR) MODULATORS<br/>[FR] 6-HALO-PYRAZOLO[1,5-A]PYRIDINES, LEUR MÉTHODE DE PRÉPARATION ET LEUR UTILISATION COMME MODULATEURS DES RÉCEPTEURS MÉTABOTROPIQUES DU GLUTAMATE (MGLUR)
申请人:MERZ PHARMA GMBH & CO KGAA
公开号:WO2009095253A1
公开(公告)日:2009-08-06
The invention relates to 6-halo-pyrazolo[1, 5-a] pyridines of formula (I) as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are mGluR5 modulators and are therefore useful for the control and prevention of acute and/or chronic neurological disorders.