The palladium-catalyzed monoamination of symmetric dibromobenzenes can be performed using a catalyst based on Pd(2)dba(3) and BINAP in the presence of NaO(t-Bu). The analogous transformation of non-symmetric bromoiodobenzenes is most effectively performed with Xantphos as the ligand, while reactions with BINAP were non-selective. These transformations can be scaled uneventfully to >10 g quantities. They do not require drybox or Schlenk techniques, and all reagents are weighed out in air. The resulting monobromoanilines are versatile intermediates for further synthetic transformations. (C) 2008 Elsevier Ltd. All rights reserved.
[EN] AMINOQUINOLINE DERIVATIVES AS ANTIVIRAL AGENTS<br/>[FR] DÉRIVÉS D'AMINOQUINOLÉINE COMME AGENTS ANTIVIRAUX
申请人:GLAXOSMITHKLINE LLC
公开号:WO2012037108A1
公开(公告)日:2012-03-22
Provided are compounds of Formula (I) and Formula (II) and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the Flaviviridae family of viruses such as hepatitis C virus (HCV).