Simple syntheses of hydroxamic acids and their conversion into α-hydroxy and α-amino acids
作者:Saı̈d Boukhris、Abdelaziz Souizi
DOI:10.1016/s0040-4039(00)00228-8
日期:2000.4
The nucleophilic ring opening of gem-dicyanoepoxides by LiBr or Li2NiBr4, in the presence of hydroxylamine derivatives leads to new α-halo hydroxamicacids. These compounds has been used in the synthesis of α-functionalized hydroxamicacids, α-hydroxy and α-amino acids in good yields.
[EN] ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITION THEREOF<br/>[FR] DÉRIVÉS AMINOESTÉRIFIÉS D'ALCALOÏDES ET COMPOSITION MÉDICINALE LES INCLUANT
申请人:CHIESI FARMA SPA
公开号:WO2010072338A1
公开(公告)日:2010-07-01
The present invention relates to alkaloid aminoester derivatives acting as muscarinic receptor antagonists, to methods of preparing such derivatives, to compositions comprising them and therapeutic use thereof.
A visible‐light‐driven sequential photoredox catalysis to allow N‐aryl α‐amino acids to experience efficient cascade aerobic decarboxylative Povarov and oxidative dehydrogenation (ODH) reactions is described. With a dicyanopyrazine‐derived chromophore (DPZ) as a photoredoxcatalyst in both transformations, two series of valuable azaarenes, i. e., 4‐amino tetrahydroquinolines (THQs) and quinolines,
Ugi four-component condensation with two cleavable components: the easiest synthesis of 2,N-diarylglycines
作者:Cristina Faggi、Ana G. Neo、Stefano Marcaccini、Gloria Menchi、Julia Revuelta
DOI:10.1016/j.tetlet.2008.01.134
日期:2008.3
The Ugi four-componentcondensation between anilines, aromatic aldehydes, isocyanides, and α-oxoacids afforded the expected adducts which were cleaved in mild conditions to give 2,N-diarylglycines in high yields.
ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITION THEREOF
申请人:Caligiuri Antonio
公开号:US20100173880A1
公开(公告)日:2010-07-08
Alkaloid aminoester compounds which act as muscarinic receptor antagonists are useful for the prevention and/or treatment of a broncho-obstructive or inflammatory diseases.