[EN] GROUP 8 TRANSITION METAL CATALYSTS AND METHOD FOR MAKING SAME AND PROCESS FOR USE OF SAME IN OLEFIN DISPROPORTIONATION REACTIONS [FR] CATALYSEURS DE MÉTAUX DE TRANSITION DU GROUPE 8, LEUR PROCÉDÉ DE FABRICATION, ET LEUR PROCÉDÉ D'UTILISATION DANS LES RÉACTIONS DE DISPROPORTIONATION DES OLÉFINES
copper-catalyzed intramolecular enantioselective and diastereoselective borylative coupling of styrenes and ketones was achieved by merging desymmetrization strategy and olefin difunctionalization. The reaction proceeds through an initial enantioselective borylcupration of styrenes, followed by a highly selective direct addition to 1,3-diketones. The bicyclic scaffolds with three chiralcarboncenters, including
[EN] CYSTEINE PROTEASE INHIBITORS<br/>[FR] INHIBITEURS DE LA CYSTEINE PROTEASE
申请人:AXYS PHARM INC
公开号:WO2003097617A1
公开(公告)日:2003-11-27
The present invention is directed to compounds that are inhibitors of cysteine protease, in particular, cathepsins B, K, L, F, and S and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.
Stereoselective Synthesis of Enantiopure Oxetanes, a Carbohydrate Mimic, an ϵ-Lactone, and Cyclitols from Biocatalytically Derived β-Hydroxy Esters as Chiral Precursors
Biocatalyticallyderivedenantiopure α-substituted β-hydroxyesters serve as excellent chirons for the synthesis of a diverse set of structures such as oxetanes, a carbohydratemimic, an ϵ-lactone, and carbocyclic and aromatic cyclitols. The starting materials can be easily accessed in enantiopure form from α-substituted β-keto esters by biocatalytic reduction with Klebsiella pneumoniae (NBRC 3319)
Multinuclear half metallocene catalyst and method for preparing syndiotactic polystyrene using the same
申请人:LG Chem Ltd.
公开号:EP1777230A1
公开(公告)日:2007-04-25
Diclosed is a multinuclear transition metal half metallocene catalyst having a multinuclear half metallocene structure in which a transition metal of groups 3 to 10 on periodic table is connected to a cycloalkandienyl group or its derivative group on a side and also connected to phenol or phenolamine compound having a plurality of binding sites on another side. The metallocene catalyst is useful to produce syndiotatic styrene polymer having superior steroreguality, high melting point and broad molecular weight distribution with high activity together with a small amount of a cocatalyst. Further disclosed is a method for preparing styrene polymers using the same catalyst.
[EN] NEW MACROCYCLIC AMIDINOUREA DERIVATIVES, METHODS OF PREPARATION AND USES THEREOF AS CHITINASE INHIBITORS<br/>[FR] NOUVEAUX DÉRIVÉS AMIDINOUREA MACROCYCLIQUES, PROCÉDÉS DE PRÉPARATION ET D'UTILISATION DE CEUX-CI EN TANT QU'INHIBITEURS DE CHITINASES.
申请人:BAKKER MEDICAL S R L
公开号:WO2014202697A1
公开(公告)日:2014-12-24
The present invention relates to macrocyclic amidinourea derivatives of formula 8, methods of preparation and uses thereof, pharmaceutical compositions in particular to be used as chitinase inhibitors in the treatment of a fungal infection.