Benzamidine derivatives and their use as anti-coagulants
申请人:Berlex Laboratories, Inc.
公开号:US06350746B1
公开(公告)日:2002-02-26
This invention is directed to benzamidine derivatives which are useful as anti-coagulants. This invention is also directed to pharmaceutical compositions containing the compounds of the invention, and methods of using the compounds to treat disease-states characterized by thrombotic activity.
The C–H amination of electron-deficientarenes such as polyfluoroarenes and azole compounds with O-acylated hydroxylamines effectively proceeds in the presence of a copper catalyst even at room temperature to provide the corresponding anilines and aminoazoles in good yields.
A copper-catalyzed electrophilic, umpolung amination strategy for the direct C-H amination of polyfluoroarenes and 1,3-azoles has been developed. The copper-based amination reaction is robust and can be easily scaled up on a gram scale. Its application to an annulative electrophilic amination of o-alkynylphenols and -anilines for the synthesis of 3-aminobenzofurans and -indoles is also described.
Peroxy-acid oxidation of NN-disubstituted aminotetrafluoro-, amino-3-chlorotrifluoro-, and amino-3,5-dichlorodifluoro-pyridines
作者:S. M. Roberts、H. Suschitzky
DOI:10.1039/j39690001485
日期:——
Peroxy-acidoxidation of NN-disubstituted 4-aminotetrafluoropyridines occurred with rearrangement of the expected intermediate N-oxide to give the NNO-trisubstituted hydroxylamines. The 2,4-bis-(NN-disubstituted amino)trifluoropyridines gave the 2-mono-N-oxide only. The oxidation of NN-dialkylamino-3-chlorotrifluoro and -3,5-dichlorodifluoropyridines was also studied and the influence of the amino-
Continuous flow glassware reactors for the laboratory
作者:Richard D. Chambers、Graham Sandford、Jelena Trmcic
DOI:10.1016/j.jfluchem.2007.07.010
日期:2007.12
Simple, general use continuous flow glassware reactors that are constructed by standard glass blowing techniques have been designed and used for various nucleophilic aromatic substitution reactions. The glassware flow reactors, consisting of a reaction channel that is 0.5 mm in diameter and may possess a range of inlet and outlet ports, provide the opportunity for research scientists to use inexpensive