Synthesis and cytotoxic activities of novel phenacylimidazolium bromides
摘要:
A series of novel phenacylimidazolium derivatives, bearing an aryl or alkyl substituent at position-1 and a phenacyl substituent at position-3 of the imidazole ring, has been prepared and evaluated in vitro against a panel of human tumor cell lines. Phenacylimidazolium bromides bearing a highly sterically hindered aryl group at position-1 and an electron-rich phenacyl or naphthylacyl substituent at position-3 of imidazole ring proved to be more active than imidazolium bromides with other substituted groups. In particular, compound 5j was found to be the most potent compounds with IC50 values lower than 5.0 mu M against 8 strains human tumor cell lines and more active than cisplatin (DDP). (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis, structure, and olefin polymerization with nickel(ii) N-heterocyclic carbene enolates
作者:Benjamin E. Ketz、Xavier G. Ottenwaelder、Robert M. Waymouth
DOI:10.1039/b511202h
日期:——
Two novel N-heterocylic carbene enolate nickel complexes have been prepared and shown to be active for ethylene and propylene polymerization to yield linear polymers.