[EN] COMPOUNDS AND COMPOSITIONS FOR USE IN TREATING SKIN DISORDERS [FR] COMPOSÉS ET COMPOSITIONS POUR LEUR UTILISATION DANS LE TRAITEMENT DE TROUBLES CUTANÉS
[EN] COMPOUNDS AND COMPOSITIONS FOR USE IN TREATING SKIN DISORDERS [FR] COMPOSÉS ET COMPOSITIONS POUR LEUR UTILISATION DANS LE TRAITEMENT DE TROUBLES CUTANÉS
Simple <i>Aza</i>-Conjugate Addition Methodology for the Synthesis of Isoindole Nitrones and 3,4-Dihydroisoquinoline Nitrones
作者:Lucy R. Peacock、Robert S. L. Chapman、Adam C. Sedgwick、Mary F. Mahon、Dominique Amans、Steven D. Bull
DOI:10.1021/acs.orglett.5b00103
日期:2015.2.20
reactive N-hydroxy-carbinolamine intermediates that undergo intramolecular aza-conjugate addition reactions to afford isoindole nitrones and 3,4-dihydroisoquinoline nitrones in good yield. Conditions have been developed to reduce these isoindole nitrones to their corresponding hydroxylamine, enamine, and amine derivatives. Isoindole nitrones react with dimethyl acetylenedicarboxylate (DMAD) via a [4
Intramolecular Ester Enolate–Imine Cyclization Reactions for the Asymmetric Synthesis of Polycyclic β-Lactams and Cyclic β-Amino Acid Derivatives
作者:Caroline D. Evans、Mary F. Mahon、Philip C. Andrews、James Muir、Steven D. Bull
DOI:10.1021/ol202750u
日期:2011.12.2
N-(α-methyl-p-methoxybenzyl)-ω-imino-esters undergo intramolecular cyclization reactions to afford (syn)-aza-anions of β-amino esters in high dr that cyclize to afford N-(α-methyl-p-methoxybenzyl)-β-lactams that can be readily deprotected to afford their corresponding cyclic NH-β-lactams, β-amino esters, or β-amino acids.