Aqueous Hydrofluoric Acid Catalyzed Facile Synthesis of 2,3,6-Substituted Quinoxalines
作者:A. Chandra Shekhar、A. Ravi Kumar、G. Sathaiah、K. Raju、P. V. S. S. Srinivas、P. Shanthan Rao、B. Narsaiah
DOI:10.1002/jhet.1753
日期:2014.9
A versatile synthetic route for the preparation of 2,3,6‐trisubstituted quinoxalines in excellent yield is developed from θ‐diamines and 1,2‐dicarbonyl compounds in which aqueoushydrofluoricacid was employed as the medium and catalyst. Other salient features of this protocol include milder conditions, absence of coupling agents, and easy workup procedures.
Synthesis and evaluation for biological activity of 3-alkyl and 3-halogenoalkyl-quinoxalin-2-ones variously substituted. Part 4
作者:Antonio Carta、Paolo Sanna、Mario Loriga、Maria Giovanna Setzu、Paolo La Colla、Roberta Loddo
DOI:10.1016/s0014-827x(01)01153-3
日期:2002.1
A new series of 3-isopropyl-, 3-trifluoromethyl- and 3-bromomethylquinoxaline-2-ones variously substituted on the benzo-moiety were synthesized and submitted to a preliminary in vitro evaluation for antibacterial, antifungal and anti-HIV activities. Furthermore, all compounds were also tested for cytotoxicity. Results of the screening showed that compound 10 exhibits moderate antimicrobial activity against Staphylococcus aureus (MIC=33 muM), and that 25 and 26 showed interesting cytotoxicity versus mock-infected MT-4 cells. All the other compounds were inactive. (C) 2002 Elsevier Science S.A. All rights reserved.
MUSTAFA MOHAMED EL-SAID; TAKAOKA AKIO; ISHIKAWA NOBUO, BULL. SOC. CHIM. FR.,(1986) N 6, 944-954