1,5-Dicarbonyl-Verbindungen durch Michael-Addition deprotonierter Enamine und Allylamine an 2-(<i>N</i>-Methylanilino)-acrylnitril
作者:Hubertus Ahlbrecht、Manfred Dietz、Lothar Weber
DOI:10.1055/s-1987-27904
日期:——
1,5-Dicarbonyl Compounds via Michael-Addition of Deprotonated Enamines and Allylamines to 2-(N-Methylanilino) acrylonitrile A new method for the synthesis of the title compounds by a onepot, three component, coupling reaction is described. Is consists of the reaction of a homoenolate anion and an enol cation equivalent with subsequent alkylation of an acyl-anion equivalent. Hence the methodology of Umpolung is used in a threefold manner within the reaction sequence.
Expedient Synthesis of 1,5-Diketones by Rhodium-Catalyzed Hydroacylation Enabled by C–C Bond Cleavage
作者:Rui Guo、Guozhu Zhang
DOI:10.1021/jacs.7b05427
日期:2017.9.20
A rhodium-catalyzedintermolecularhydroacylationreaction of vinyl cyclobutanols with non-chelating aldehydes has been developed. This reaction offers a new and atom-economical approach for the selective preparation of 1,5-diketones in high yields. Experimental data suggest a sequential ring-opening, transfer hydrogenation, and hydroacylation mechanism. We propose that aldehyde decarbonylation is
Conjugate addition of allylic groups to α,β-unsaturated carbonyl compounds via (η3-allyl)Fe(CO)2NO complexes
作者:Keiji Itoh、Saburo Nakanishi、Yoshio Otsuji
DOI:10.1016/0022-328x(94)80122-3
日期:1994.6
complexes undergo conjugateaddition to α,β-unsaturatedcarbonylcompounds to give the corresponding δ,ϵ-unsaturated carbonylcompounds in good yields. The reaction of (η3-1-or 2-trimethylsiloxyallyl) Fe(CO)2NO complexes with α,β-unsaturated ketones affords 1,6- or 1,5-diketones, respectively. (η3-1-Acetonylallyl)Fe(CO)2NO complexes also react with α,β-unsaturatedcarbonylcompounds to give 1,8-dicarbonyl
Novel peptides as NS3-serine protease inhibitors of hepatitis C virus
申请人:Saksena K. Anil
公开号:US20070032433A1
公开(公告)日:2007-02-08
The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.
[EN] MACROCYCLIC INHIBITORS OF HEPATITIS C VIRUS NS3 SERINE PROTEASE<br/>[FR] INHIBITEURS MACROCYCLIQUES DE LA SERINE PROTEASE NS3 DU VIRUS DE L'HEPATITE C
申请人:SCHERING CORP
公开号:WO2005030796A1
公开(公告)日:2005-04-07
The present invention discloses novel compounds which have HCV protease inhibitory activity as well as pharmaceutical compositions comprising such compounds and methods of using them to treat disorders associated with the HCV protease. The novel compounds typically include a 15-20 member macrocycle and have the general structure of structural Formula (1): wherein Z', L', M', R1, X and D are defined herein.