Tropane derivatives and method for their synthesis
申请人:Georgetown University
公开号:US06350758B1
公开(公告)日:2002-02-26
A compound of formula (I) wherein R1-R6 have any of the values defined in the specification are described, as well as pharmaceutical compositions comprising a compound of formula (I), and methods for preparing and using compounds of formula (I) are described.
homogeneous iridium catalyst, providing a direct access to 2- and 4-substituted piperidin-3-one derivatives with high yields, which are important organic synthetic intermediates and the prevalent structural motifs in pharmaceutical agents. Mild reaction conditions, high chemoselectivity, and easy scalability make this reaction highly practical for the synthesis of piperidin-3-ones.
New synthetic routes to substituted 3-hydroxypyridines 6 are presented. Ring-closingolefinmetathesis (RCM)/elimination and RCM/oxidation/deprotection of nitrogen-containing dienes 4 are the key processes of the routes. An application of RCM/oxidation/deprotection to the synthesis of 3-aminopyridine 13f is also described.
Comins, Daniel L.; Stroud, Eric D., Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 1419 - 1420
作者:Comins, Daniel L.、Stroud, Eric D.
DOI:——
日期:——
Selenium dioxide-mediated methoxyhydroxylation of cyclic arylolefin
作者:Meng-Yang Chang、Chung-Han Lin、Yeh-Long Chen
DOI:10.1016/j.tetlet.2010.01.020
日期:2010.3
Selenium dioxide-mediated methoxyhydroxylation of cyclic arylolefin with the modest yields is described. This facile strategy was also used to synthesize several 4-arylpyridines, 3-hydroxy-4-arylpyridines, and 3,4-diarylpyridines. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.