Asymmetric Synthesis of 3,4‐Dihydroquinolin‐2‐ones via Organocatalytic [4+2]‐Cyclization of 2‐Amino‐β‐nitrostyrenes with Azlactones
作者:Heebum Kim、Yeongju Kim、Sung‐Gon Kim
DOI:10.1002/adsc.202400061
日期:2024.4.23
been developed to synthesize enantioenriched 3,4‐dihydroquinoline‐2‐one derivatives. This innovative approach utilizes an asymmetric [4+2]‐cyclization process, combining 2‐amino‐β‐nitrostyrenes with azlactones, and is facilitated by a bifunctional squaramide‐based organocatalyst. This innovative approach has enabled the creation of novel chiral 3,4‐dihydroquinoline‐2‐ones with complex structures, including
Palladium‐Catalyzed Asymmetric [4+3] Cycloadditions of Indene‐2‐carbaldehydes with 4‐Vinylbenzoxazinanones Toward Polycyclic 5
<i>H</i>
‐Benzo[
<i>b</i>
]azepines
作者:Xiyuan Zhang、Yanfeng Gao、Zhiwei Miao
DOI:10.1002/adsc.202201199
日期:2023.2.7
AbstractPalladium‐catalyzed asymmetric [4+3] cycloadditions of indene‐2‐carbaldehydes and 4‐vinyl benzoxazinanones proceeded smoothly in the presence of chiral phosphine ligands to give the corresponding functionalized 5H‐benzo[b]azepines (26 examples, 60% to 89% yield, 88:12 to 95.5:4.5 er) under mild conditions.magnified image
US6054114A
申请人:——
公开号:US6054114A
公开(公告)日:2000-04-25
[EN] ORGANOMETALLIC LIGANDS FOR THE LOCALIZATION AND QUANTIFICATION OF AMYLOID IN VIVO AND IN VITRO<br/>[FR] LIGANDS ORGANOMETALLIQUES POUR LA LOCALISATION ET LA QUANTIFICATION D'AMYLOIDE IN VIVO ET IN VITRO
申请人:MASSACHUSETTS INSTITUTE OF TECHNOLOGY
公开号:WO1997041856A1
公开(公告)日:1997-11-13
(EN) Novel organometallic compounds for binding amyloid are described. Methods using such compounds for determining by imaging the localization or quantification of amyloid fibrils in a mammal, for diagnosing the degree of progression of Alzheimer's disease in a mammal, for monitoring the response to therapy in a mammal having Alzheimer's disease, for identifying an agent useful for treating Alzheimer's disease, for treating Alzheimer's disease, and for detecting the presence of the infectious form of the prion protein, are also described.(FR) L'invention a trait à de nouveaux composés organométalliques aux fins de la fixation d'amyloïde. Elle a également trait à des techniques faisant intervenir ces composés pour localiser ou quantifier, par imagerie, des fibrilles amyloïdes chez un mammifère, pour diagnostiquer le degré d'évolution de la maladie d'Alzheimer chez un mammifère, pour surveiller la réaction à une thérapie chez un mammifère atteint de la maladie d'Alzheimer, pour identifier un agent efficace en matière de traitement de la maladie d'Alzheimer, pour traiter la maladie d'Alzheimer elle-même ainsi que pour déceler la présence de la forme infectieuse de la protéine prion.
Organometallic ligands for the localization and quantification of
申请人:Massachusetts Institute of Technology
公开号:US06054114A1
公开(公告)日:2000-04-25
Novel organometallic compounds for binding amyloid are described. Methods using such compounds for determining by imaging the localization or quantification of amyloid fibrils in a mammal, for diagnosing the degree of progression of Alzheimer's disease in a mammal, for monitoring the response to a therapy in a mammal having Alzheimer's disease, for identifying an agent useful for treating Alzheimer's disease, for treating Alzheimer's disease, and for detecting the presence of the infectious form of the prion protein, are also described.