Structure−Activity Relationship and Molecular Mechanisms of Ethyl 2-Amino-4-(2-ethoxy-2-oxoethyl)-6-phenyl-4<i>H</i>-chromene-3-carboxylate (sHA 14-1) and Its Analogues
作者:Sonia G. Das、Jignesh M. Doshi、Defeng Tian、Sadiya N. Addo、Balasubramanian Srinivasan、David L. Hermanson、Chengguo Xing
DOI:10.1021/jm9005059
日期:2009.10.8
excitingly, our studies of 5q in camptothecin (CCRF-CEM/C2) and mitoxantrone (HL-60/MX2) resistant cancer cells highlight its ability to selectively kill drug-resistant cells over parent cancer cells. 5q inhibits tumor cell growth through the induction of apoptosis, with detailed mechanism of its selectivity toward drug-resistant cancer cells under investigation. These results suggest that 5q is a promising
Improvements and Applications of the Transition Metal-Free Asymmetric Allylic Alkylation using Grignard Reagents and Magnesium Alanates
作者:David Grassi、Alexandre Alexakis
DOI:10.1002/adsc.201500495
日期:2015.10.12
Two new N-heterocyclic carbene (NHC) ligands have been synthesized and employed in the transition metal-free asymmetric allylic alkylation (AAA) mediated by Grignardreagents and magnesium alanates. The employment of these ligands showed high yields and improved regio- and enantioselectivity in the formation of tertiary and quaternary stereocenters. Moreover, the low catalyst loading (up to 0.3 mol%)
Non-metallocene compounds, method for the production thereof and use of the same for the polymerisation of olefins
申请人:——
公开号:US20040023940A1
公开(公告)日:2004-02-05
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.
这项发明涉及一种生产特殊过渡金属化合物的方法,新型过渡金属化合物以及将其用于烯烃聚合的用途。
Covalently fixed nonmetallocenes, process for preparing them and their use for the polymerization of olefins
申请人:Schottek Jorg
公开号:US20050148461A1
公开(公告)日:2005-07-07
The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins.