Oxidative Intramolecular Bromo-Amination of N-Alkenyl Sulfonamides via Umpolung of Alkali Metal Bromides
摘要:
The oxidative intramolecular bromo-amination of various N-alkenyl sulfonamides and N-alkenoxyl sulfonamides via umpolung of alkali metal bromides occurred exo-selectively to generate cyclic bromoamides in high yields with good diastereoselectivities. This method provided the desired products without elaborating the stoichiometric amount of corresponding organic waste.
Brønsted Acid-assisted Intramolecular Aminohydroxylation of <i>N</i>-Alkenylsulfonamides under Heavy Metal-free Conditions
作者:Katsuhiko Moriyama、Yuta Izumisawa、Hideo Togo
DOI:10.1021/jo301523a
日期:2012.11.2
The intramolecular aminohydroxylation of N-alkenylsulfonamides proceeded under heavy metal-free conditions to give substituted prolinol derivatives in high yields. Oxone activated by catalytic Bronsted acid worked well as an electrophilic oxidant for this reaction.
SUBSTITUTED PHENYL ACETIC ACIDS AS DP-2 ANTAGONISTS
申请人:ICOS CORPORATION
公开号:EP2044017A2
公开(公告)日:2009-04-08
[EN] SUBSTITUTED PHENYL ACETIC ACIDS AS DP-2 ANTAGONISTS<br/>[FR] ACIDES PHÉNYLACÉTIQUES SUBSTITUÉS UTILISÉS EN TANT QU'ANTAGONISTES DE DP-2
申请人:ICOS CORP
公开号:WO2007146838A2
公开(公告)日:2007-12-21
[EN] Substituted phenyl acetic acid compounds of formula I, pharmaceutical compositions, methods for their preparation and methods are provided that are useful in the treatment and prevention of disorders or conditions responsive to DP-2 receptor modulation, in particular, inflammatory and immune related disorders and conditions, such as asthma, allergic rhinitis and atopic dermatitis. [FR] La présente invention concerne des composés d'acide phénylacétique substitués répondant à la formule I, des compositions pharmaceutiques, des procédés permettant leur préparation et des procédés qui se révèlent utiles pour le traitement et la prévention de troubles ou de pathologies sensibles à une modulation du récepteur de DP-2, en particulier, des troubles et des pathologies inflammatoires et immunitaires, tels que l'asthme, la rhinite allergique et la dermatite atopique.