A versatile, stereoselective synthesis of 5-hydroxypiperidinones with substituents at N1, C3, and C6 has been developed. The sequence involves ring-closing metathesis of a diene amide and epoxidation of the resulting alkene, followed by.base-mediated elimination, and finally hydrogenation.
Sequential Allylic Substitution/Pauson–Khand Reaction: A Strategy to Bicyclic Fused Cyclopentenones from MBH-Acetates of Acetylenic Aldehydes
作者:Chada Raji Reddy、Paridala Kumaraswamy、Kiran K. Singarapu
DOI:10.1021/jo500962d
日期:2014.9.5
approach for the construction of novel bicyclic fused cyclopentenones starting from Morita–Baylis–Hillman (MBH) acetates of acetylenic aldehydes with flexible scaffold diversity has been achieved using a two-step reaction sequence involving allylic substitution and the Pauson–Khand reaction. This strategy provided a facile access to various bicycliccyclopentenones fused with either a carbocyclic or a
A Highly Enantioselective Allylic Amination Reaction Using a Commercially Available Chiral Rhodium Catalyst: Resolution of Racemic Allylic Carbonates
作者:Derek C. Vrieze、Garrett S. Hoge、Perrine Z. Hoerter、Jared T. Van Haitsma、Brian M. Samas
DOI:10.1021/ol901031b
日期:2009.7.16
A novel method for the kinetic resolution of unsymmetrical acyclic allylic carbonates and the concurrent synthesis of enantioenriched secondaryamines using a commercially available chiral catalyst is disclosed.
Synthesis of amino acid derived seven-membered lactams by RCM and their evaluation against HIV protease
作者:Shazia Zaman、Pietro Campaner、Andrew D. Abell
DOI:10.1016/j.bmc.2006.09.009
日期:2006.12
A versatile synthesis of hydroxylated and epoxy 1-azepin 2-ones substituted at N1, C-3 and C-4 or C-7 has been developed. The sequence involves ring-closing metathesis of an amino acid derived diene amide, followed by either epoxidation or dihydroxylation, of the resulting alkene. Assay of the product epoxides (10, 18, 25) and diols (9a, 17, 24) against HIV protease reveals micromolar inhibition. (c) 2006 Elsevier Ltd. All rights reserved.