Enantioselective Michael Addition/Iminium Ion Cyclization Cascades of Tryptamine-Derived Ureas
摘要:
A Michael addition/iminium ion cyclization cascade of enones with tryptamine-derived ureas under BINOL phosphoric acid (BPA) catalysis Is reported. The cascade reaction tolerates a wide variety of easily synthesized tryptamine-derived ureas, including those bearing substituents on the distal nitrogen atom of the urea moiety, affording polyheterocyclic products in good yields and good to excellent enantioselectivities.
[EN] MORPHOLINO COMPOUNDS FOR TREATING INFLAMMATORY AND DEMYELINATING DISEASES AND CANCERS<br/>[FR] COMPOSÉS MORPHOLINO UTILISÉS DANS LE TRAITEMENT DE MALADIES INFLAMMATOIRES DÉMYÉLINISANTES ET DE CANCERS
申请人:XANTHUS PHARMACEUTICALS INC
公开号:WO2008016661A2
公开(公告)日:2008-02-07
[EN] Compounds of formula (I) and a method of treating a patient suffering from certain inflammatory disorders, demyelinating disorders, FLT3-mediated disorders, CSF-I R-mediated disorders, cancers and leukemias, comprising administering to said patient a therapeutically effective amount of a compound of formula (1) or a pharmaceutically acceptable salt thereof. Definitions for the variables are provided therein. [FR] L'invention concerne des composés représentés par la formule (I) et une méthode de traitement d'un patient souffrant de certains troubles inflammatoires, de troubles de démyélinisation, de troubles médiés par FLT-3, de troubles médiés par CSF-I R, de cancers et de leucémies. Ladite méthode consiste à administrer audit patient une quantité efficace d'un point de vue thérapeutique d'un composé représenté par la formule (1) ou d'un sel acceptable d'un point de vue pharmaceutique de celui-ci. L'invention concerne également des définitions des variables.
Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation
作者:Chunling Blue Lan、Karine Auclair
DOI:10.1002/ejoc.202101059
日期:2021.10.7
Ammonium chloride promotes the selective formation of monosubstituted ureas undermicrowaveirradiation. Most nucleophiles, acid-labile functionalities, and protecting groups are well tolerated in this reaction. By avoiding transition metals and mineral acids, this methodology offers a more sustainable alternative for the synthesis of monosubstituted ureas and their analogs.
Enantioselective Michael Addition/Iminium Ion Cyclization Cascades of Tryptamine-Derived Ureas
作者:Isabelle Aillaud、David M. Barber、Amber L. Thompson、Darren J. Dixon
DOI:10.1021/ol401039h
日期:2013.6.21
A Michael addition/iminium ion cyclization cascade of enones with tryptamine-derived ureas under BINOL phosphoric acid (BPA) catalysis Is reported. The cascade reaction tolerates a wide variety of easily synthesized tryptamine-derived ureas, including those bearing substituents on the distal nitrogen atom of the urea moiety, affording polyheterocyclic products in good yields and good to excellent enantioselectivities.