Homoleptic lithium tri‐ and tetraalkyl zincates were reacted with a set of bromopyridines. Efficient and chemoselective bromine–metal exchanges were realized at roomtemperature with a substoichiometric amount of nBu4ZnLi2⋅TMEDA reagent (1/3 equiv; TMEDA=N,N,N′,N′‐tetramethylethylenediamine). This reactivity contrasted with that of tBu4ZnLi2⋅TMEDA, which was inefficient below one equivalent. DFT calculations
NEW COMPOUNDS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF
申请人:ROTH Gerald Juergen
公开号:US20120157425A1
公开(公告)日:2012-06-21
The invention relates to new piperidine derivatives of the formula I
to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.
该发明涉及新的哌啶衍生物,其化学式I,用作药物,用于治疗的方法以及含有它们的药物组合物。
[EN] PIPERIDINE DERIVATIVES AND THEIR USE FOR THE TREATMENT OF METABOLIC DISORDERS<br/>[FR] DÉRIVÉS DE PIPÉRIDINE ET LEUR UTILISATION POUR LE TRAITEMENT DE TROUBLES MÉTABOLIQUES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012001107A1
公开(公告)日:2012-01-05
The invention relates to new piperidine derivatives of the formula (I) to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.