A Mild and Regioselective Route to Functionalized Quinazolines
作者:Tracy M. M. Maiden、Stephen Swanson、Panayiotis A. Procopiou、Joseph P. A. Harrity
DOI:10.1002/chem.201502891
日期:2015.10.5
A Rh‐catalyzed ortho‐amidation cyclocondensation sequence gave a range of 4‐aminoquinazolines in high yield. The method features a remarkably mild C(sp2)H activation step and can be exploited to rapidly access compounds with established biological activity.
[EN] NOVEL METHODS FOR THE TREATMENT OF INFLAMMATORY DISEASES<br/>[FR] NOUVELLES MÉTHODES DE TRAITEMENT DES MALADIES INFLAMMATOIRES
申请人:CORTICAL PTY LTD
公开号:WO2004089927A1
公开(公告)日:2004-10-21
Methods of inhibiting the cytokine or biological activity of Macrophage Migration Inhibitory Factor (MIF) comprising contacting MIF with a compound of formula (I) are provided. The invention also relates to methods of treating diseases or conditions where MIF cytokine or biological activity is implicated comprising administration of compounds of formula (I), either alone or as a part of combination therapy. Novel compounds of formula (I) are also provided for.
S–Co(II) cascade catalysis: cyclocondensation of aromatic nitriles with alkamine
作者:Haixia Ge、Ping Liu、Xiangnan Li、Wei Sun、Jianli Li、Bingqin Yang、Zhen Shi
DOI:10.1016/j.tet.2013.05.132
日期:2013.8
A solvent-free S/Co(NO3)2 cascade catalyzed cyclocondensation reaction of aromaticnitriles with 3-amino-1-propanol or 2-aminoethanol has been successfully developed under thermal and microwave conditions. By this two-component protocol, mono- and bis-oxazines and oxazolines were selectively synthesized both in good to excellent yields and short reaction times. This catalytic system exhibits excellent
A novel method for the synthesis of β-nitrate ester carboxamides using non-corrosive tert-butyl nitrite (TBN) as the nitro source and easily available oxygen as the oxidant has been developed. Variously substituted 2-oxazolines were efficiently ring-opened to deliver the corresponding products in excellent yields. Notably, this reaction provides fast access to pharmaceuticals such as nicorandil.
Sequential twofold meta-C–H/ortho-C–H functionalization was achieved by means of versatile ruthenium(II) biscarboxylate catalysis. The double C–H activation proved viable in a one-pot fashion with the assistance of synthetically useful imidates. The operationally simple twofold C–H functionalization occurred with high levels of positional selectivity control and was conducted in a nonsequential manner