Chiral synthesis of indolizidines 209D and 167B via asymmetric oxidation of sulfides and sulfoxides
作者:Shang-Shing P. Chou、Chien-Jung J. Wu
DOI:10.1016/j.tet.2012.04.054
日期:2012.6
Chiralsynthesis of indolizidine natural products (−)-209D and (−)-167B, as well as their antipodes, has been achieved through asymmetric oxidation of racemic thio-substituted indolizidines to the chiralsulfoxides and sulfones followed by Raney nickel reduction.
Amide α,β-Dehydrogenation Using Allyl-Palladium Catalysis and a Hindered Monodentate Anilide
作者:Yifeng Chen、Aneta Turlik、Timothy R. Newhouse
DOI:10.1021/jacs.5b12924
日期:2016.2.3
A practical and direct method for the alpha,beta-dehydrogenation of amides is reported using allyl-palladium catalysis. Critical to the success of this process was the synthesis and application of a novel lithium N-cyclohexyl anilide (LiCyan). The reaction conditions tolerate a wide variety of substrates, including those with acidic heteroatom nucleophiles.
New synthesis and reactions of indolizidine 167E and indolizidine derivatives
作者:Shang-Shing P. Chou、Shan-Lun Chiang、Guan-Lin Huang、Bi-Shan Chiang、Ya-Chien Yu
DOI:10.1016/j.tet.2012.10.026
日期:2013.1
Two new methods of synthesizing indolizidines via ring-closing metathesis (RCM) have been developed. One method utilizes an alkene-isomerization, and the other method uses N-vinylation of an amide as the key step. Indolizidine 167E and many derivatives have also been synthesized. (C) 2012 Elsevier Ltd. All rights reserved.
[EN] 5,6-FUSED PYRROLIDINE COMPOUNDS USEFUL AS TACHYKININ RECEPTOR ANTAGONISTS<br/>[FR] COMPOSÉS PYRROLIDINE 5,6-FUSIONNÉS CONVENANT COMME ANTAGONISTES DES RÉCEPTEURS DE TACHYKININE
申请人:MERCK & CO INC
公开号:WO2007136570A2
公开(公告)日:2007-11-29
[EN] The present invention is directed to certain 5,6-fused pyrrolidine compounds which are useful as neurokinin-1 (NK-1) receptor antagonists, and inhibitors of tachykinin and in particular substance P. The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including emesis, urinary incontinence, depression, and anxiety. [FR] La présente invention concerne certains composés pyrrolidine 5.6-fusionnés qui conviennent comme antagonistes des récepteurs de neurokinine 1 (NK-1) et comme inhibiteurs de tachykinine et en particulier de substance P. Cette invention concerne aussi des préparations pharmaceutiques comprenant ces composés comme principes actifs et l'utilisation de ces composés et de leurs préparations dans le traitement de certains troubles, notamment le vomissement, l'incontinence urinaire, la dépression et l'anxiété.