Speeding up heterogeneous catalysis with an improved highly reusable catalyst for the preparation of enantioenriched secondary alcohols
作者:Esther M. Sánchez-Carnerero、Rafael Sandoval-Torrientes、Javier Urieta-Mora、Florencio Moreno、Beatriz L. Maroto、Santiago de la Moya
DOI:10.1016/j.reactfunctpolym.2017.02.008
日期:2017.4
A new catalytic heterogeneous system, very efficient and highly reusable, for the preparation of enantioenriched secondary alcohols through the addition of diethylzinc to benzaldehyde has been developed. This system is based on a chiral bis(hydroxyamide) ligand supported on crosslinked polystyrene. The catalyst has been shown to be very efficient, leading to the corresponding secondary alcohol with
The present invention relates to ring-bridged bis-quinolines of the general formula (I): ##STR1## in which the indicated substituents are as defined in the description. The invention also provides a process for the preparation of compounds of the formula (I), their use for the preparation of drugs, and drugs containing said compounds.
Heterocyclic compounds, which are inhibitors of the enzyme DPP-IV
申请人:——
公开号:US20020161001A1
公开(公告)日:2002-10-31
The present invention relates to therapeutically active and selective inhibitors of the enzyme DPP-IV, pharmaceutical compositions comprising the compounds and the use of such compounds for and the manufacture of medicaments for treating diseases that are associated with proteins which are subject to inactivation by DPP-IV, such as type 2 diabetes and obesity, as well as methods for treating diseases that are associated with proteins which are subject to inactivation by DPP-IV, such as type 2 diabetes and obesity
Heterocyclic compounds that are inhibitors of the enzyme DPP-IV
申请人:NOVO NORDISK A/S
公开号:EP1561752A1
公开(公告)日:2005-08-10
The present invention relates to therapeutically active and selective inhibitors of the enzyme DPP-IV, pharmaceutical compositions comprising the compounds and the use of such compounds for and the manufacture of medicaments for treating diseases that are associated with proteins which are subject to inactivation by DPP-IV, such as type 2 diabetes and obesity, as well as methods for treating diseases that are associated with proteins which are subject to inactivation by DPP-IV, such as type 2 diabetes and obesity.