Die Erfindung betrifft substituierte Chinolone und Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prophylaxe von Krankheiten, insbesondere zur Verwendung als antivirale Mittel, insbesondere gegen Cytomegaloviren.
A tandem dearomatization/rearomatization strategy: enantioselective N-heterocyclic carbene-catalyzed α-arylation
作者:Zijun Wu、Jian Wang
DOI:10.1039/c8sc04601h
日期:——
the carbene-catalyzed tandem dearomatization/rearomatization reaction of azonaphthalenes with α-chloroaldehydes is described. This protocol enables the efficient assembly of chiral dihydrocinnolinone derivatives in good yields with excellent enantioselectivities (up to 99% ee). Moreover, this strategy enables not only the highlyenantioselective NHC-catalyzed nucleophilic aromatic substitution, but also
Diasteroselective Preparation of Cyclopropanols Using Methylene Bis(iodozinc)
作者:Kevin Cheng、Patrick J. Carroll、Patrick J. Walsh
DOI:10.1021/ol200597h
日期:2011.5.6
A diastereoselective synthesis of trans-2-substituted cyclopropanols is outlined. Bimetallic CH2(ZnI)(2) was found to react with alpha-chloroaldehydes to give cyclopropanols in yields of 64-89% and dr's >= 10:1. The high trans-selectivity resulted from equilibration of the cyclopropoxide intermediates.