Catalytic, Enantioselective, and Highly Chemoselective Bromocyclization of Olefinic Dicarbonyl Compounds
作者:Yi Zhao、Xiaojian Jiang、Ying-Yeung Yeung
DOI:10.1002/anie.201304107
日期:2013.8.12
Overriding preferences: An amine–thiocarbamate catalyst can mediate the facile, efficient, and highly enantioselective bromocyclization of olefinic 1,3‐dicarbonyl compounds. In the presence of the bifunctional catalyst, the bromination occurs chemoselectively at the olefinic moiety rather than at the carbon atom in the α‐position to the carbonyl units.
System for delivering therapeutic agents into living cells and cells nuclei
申请人:Segev David
公开号:US20080004234A1
公开(公告)日:2008-01-03
A novel class of oligomeric compounds designed for forming conjugates with biologically active substances and delivering these substances to a desired bodily target are disclosed. Novel conjugates of these oligomeric compounds and biologically active moieties, pharmaceutical compositions containing such conjugates, and uses thereof as delivery systems for delivering the biologically active substances to a desired target are further disclosed. Processes of preparing the conjugates and the oligomeric compounds and novel intermediates designed for and used in these processes are also disclosed.