A one-pot protocol for the dearomative double nucleophilic addition to pyridines and quinolines, providing convenient, regioselective and diastereoselective access to tetrahydropyridines and tetrahydroquinolines under reductant-free conditions is described. This method also offers a new strategy for the general dearomatization of nitrogen heteroaromatics.
Visible Light Photocatalytic Synthesis of Tetrahydroquinolines Under Batch and Flow Conditions
作者:Daniel González‐Muñoz、José Luis Nova‐Fernández、Ada Martinelli、Gustavo Pascual‐Coca、Silvia Cabrera、José Alemán
DOI:10.1002/ejoc.202001018
日期:2020.10.8
aryl‐iodine derivatives to tetrahydroquinolines. In addition, the strategy does not need the use of nitrogen protecting groups. Although one of the limitations is the 24‐hour reaction times in batch conditions, the use of flow conditions allows to obtain the products in just one hour.
Nucleophilic Dearomatization of N-Heteroaromatics Enabled by Lewis Acids and Copper Catalysis
作者:Xingchen Yan、Luo Ge、Marta Castiñeira Reis、Syuzanna R. Harutyunyan
DOI:10.1021/jacs.0c09974
日期:2020.11.25
reactivity of aromatic substrates associated with the loss of aromaticity, as well the regio- and stereoselectivities of the reaction. Here we present a catalytic system that leads to unprecedented, high-yielding dearomative C-4 functionalization of quinolines with organometallics with nearly absolute regio- and stereoselectivities and with a catalyst turnover number (TON) as high as 1000. The synergistic action
[EN] TRICYCLIC COMPOUNDS TO DEGRADE NEOSUBSTRATES FOR MEDICAL THERAPY<br/>[FR] COMPOSÉS TRICYCLIQUES POUR DÉGRADER DES NÉO-SUBSTRATS POUR UNE THÉRAPIE MÉDICALE
申请人:C4 THERAPEUTICS INC
公开号:WO2022081927A1
公开(公告)日:2022-04-21
The invention provides tricyclic compounds that degrade neosubstrates for use in the treatment of disorders described herein, including, for example, abnormal cellular proliferation, neurodegenerative diseases, and autoimmune diseases.
Bis-aromatic amides and their uses as sweet flavor modifiers, tastants, and taste enhancers
申请人:Tachdjian Catherine
公开号:US20070003680A1
公开(公告)日:2007-01-04
The inventions disclosed herein relate to man-made bi-aromatic amide compounds that, when contacted with comestible food or drinks or pharmaceutical compositions at concentrations preferably on the order of about 100 ppm or lower, serve as sweet taste modifiers, sweet flavoring agents, or sweet flavor enhancers, for use in foods, beverages, and other comestible products, or orally administered medicinal products or compositions, optionally in the presence of or in mixtures with conventional flavoring agents such as known natural saccharide sweeteners and previously known artificial sweeteners.