[EN] NITROGEN CONTAINING BICYCLIC CHEMICAL ENTITIES FOR TREATING VIRAL INFECTIONS<br/>[FR] ENTITÉS CHIMIQUES BICYCLIQUES AZOTÉES POUR TRAITER LES INFECTIONS VIRALES
申请人:GENELABS TECH INC
公开号:WO2009023179A3
公开(公告)日:2009-08-06
Replacement of the quinoline system in 2-phenyl-4-quinolinecarboxamide NK-3 receptor antagonists
Results from a medicinal chemistry approach aimed at replacing the quinoline ring system in the potent and selective human neurokinin-3 (hNK-3) receptor antagonists 1-4 of general formula I are discussed. The data give further insight upon the potential NK-3 pharmacophore. In particular, it is highlighted that both the benzene-condensed ring and the quinoline nitrogen are crucial determinants for optimal binding affinity to the hNK-3 receptor. Some novel compounds maintained part of the binding affinity to the receptor (5, 6, 10 and 13) and compound 5, featuring the naphthalene ring system, appears to be suitable for further modifications; it offers the option to introduce electron-withdrawing groups at position 2 and 4, conferring on the ring an overall electron-deficiency similar to that of the quinoline. (C) 1999 Elsevier Science S.A. All rights reserved.
Polyfunctional pyridines from nitroacetamidine and β-diketones. A useful synthesis of substituted imidazo [4,5-<i>b</i>] pyridines and related compounds
作者:Douglas G. Batt、Gregory C. Houghton
DOI:10.1002/jhet.5570320349
日期:1995.5
Nitroacetamidine undergoes a useful cyclocondensation with β-diketones to produce substituted 2-amino-3-nitropyridines. Use of an acylpyruvate generates hitherto unreported 2-amino-3-nitropyridine-4-carboxylates. These may be converted easily to functionalized imidazo[4,5-b]pyridines and oxazolo-[5,4-b]pyridines.
硝基乙am与β-二酮进行有效的环缩合反应,生成取代的2-氨基-3-硝基吡啶。酰基丙酮酸酯的使用产生迄今未报道的2-氨基-3-硝基吡啶-4-羧酸酯。这些可以容易地转化为官能化的咪唑并[4,5- b ]吡啶和恶唑-[5,4- b ]吡啶。
Reaktionen mit Imidsäureestern, VI. Umsetzung von Imidsäureestern mit β-Amino-crotonsäureester
作者:Walter Ried、Peter Stock
DOI:10.1002/jlac.19667000112
日期:1966.12.31
β-Amino-carbonsäureäthylester bzw. 3-Amino-hexen-(2)-amino-carbonsäureäthylester setzen sich mit Imidsäureestern mittlerer Basizität zu 4-Hydroxy-pyrimidinen (Tab. 1) um. Schwach basische Imidsäureester reagieren nur zu den entsprechenden Amidinen (Tab. 2).