Preparation of Alkyl-Substituted Indoles in the Benzene Portion. Part 8. Improved Practical Synthesis of 4,4-Dialkoxy-1-(1-arylsulfonyl-3-pyrolyl)-1-butanone and 4-(1-Arylsulfonyl-3-pyrrolyl)-4-oxobutanal, and a Novel Synthetic Procedure for 4-Alkoxyindole Derivatives.
Base‐Catalysed Intramolecular Hydroamination of Vinyl Sulfides
作者:Coralie Quinet、Laetitia Sampoux、István E. Markó
DOI:10.1002/ejoc.200900009
日期:2009.4
Small amounts of n-butyllithium catalyse the highly efficient hydroamination of a large variety of vinylsulfides. This novel methodology offers an easy access to a wide range of nitrogen heterocycles, including simple pyrrolidines and piperidines, as well as more complex bicyclic compounds. Subsequent transformations of the sulfur group led to the formation of functionalised alkaloid-like substructures
Exo- and diastereo- selective syntheses of himbacine analogs
申请人:Wu George
公开号:US20060247450A1
公开(公告)日:2006-11-02
This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following:
EXO- AND DIASTEREO- SELECTIVE SYNTHESIS OF HIMBACINE ANALOGS
申请人:Wu George
公开号:US20110251392A1
公开(公告)日:2011-10-13
This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following:
Exo- and diastereo- selective synthesis of himbacine analogs
申请人:Schering Corporation
公开号:US08258319B2
公开(公告)日:2012-09-04
This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following:
Exo- and diastereo-selective synthesis of himbacine analogs
申请人:Wu George G.
公开号:US08618314B2
公开(公告)日:2013-12-31
This application discloses a novel process for the preparation of himbacine analogs useful as thrombin receptor antagonists. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. The chemistry taught herein can be exemplified by the following: