OXAZOLIDINEDIONE DERIVATIVES, PROCESS FOR THEIR PREPARATION, AND HERBICIDES CONTAINING THE SAME
申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0241559B1
公开(公告)日:1991-10-30
THIENO[2,3-D]PYRIMIDINDIONE DERIVATIVES AS MATRIX METALLOPROTEINASE INHIBITORS
申请人:Warner-Lambert Company LLC
公开号:EP1370562A1
公开(公告)日:2003-12-17
COVALENTLY BOUND POLYSACCHARIDE-BASED CHIRAL STATIONARY PHASES AND METHOD FOR THEIR PREPARATION
申请人:Xu Hui
公开号:US20090216006A1
公开(公告)日:2009-08-27
The present invention relates to liquid chromatographic chiral stationary phases (CSPs) and their preparation. The CSPs are based on carbamate-derivatized polysaccharides that are covalently bound onto inorganic oxide carriers via unique linkage chemistry. The present invention also relates to methods of obtaining the said linkages, which include derivatizing and functionalizing the polysaccharides, and also chemically bonding the functionalized carbamate-derivatized polysaccharides onto inorganic oxide carriers. The polysaccharide derivatives so obtained can be used as materials for the liquid chromatographic chiral separation of enantiomers. The preferred inorganic oxides are silica, zirconium oxide, and aluminum oxide. Cellulose and amylose are the preferred chiral polysaccharides.