Several quinolines were synthesized and evaluated in vitro against several parasites (Trypanosoma brucei, T. cruzi, Leishmania infantum, L. amazonensis, Plasmodium falciparum). Then, they were evaluated in vitro (at 10 muM), against HTLV-1 transformed cells. A few of them displayed interesting activities, comparable to the reference drugs. (C) 2004 Elsevier Ltd. All rights reserved.
Brønsted acid promoted benzylic C–H bond functionalization of azaarenes: nucleophilic addition to aldehydes
作者:Fang-Fang Wang、Cui-Ping Luo、Yi Wang、Guojun Deng、Luo Yang
DOI:10.1039/c2ob26604k
日期:——
A practical Brønsted acid promoted benzylicC–Hfunctionalization of 2-methylazaarenes and nucleophilic addition to aldehydes was developed in good to excellent yields. A six-membered hydrogen-bonding transition state is proposed to be crucial for the reaction. Ready availability of the two starting materials, the use of acetic acid as the catalyst and the facile reaction conditions will guarantee
α‐Chymotrypsin from the bovine pancreas has been shown for the first time to display catalytic nonnatural catalytic ability toward the C (sp3)–H functionalization reaction of 2‐methylquinoline and aromatic aldehydes in water. α‐Chymotrypsin exhibited favorable catalytic activity with good adaptability to different substrates. The activity of the enzyme could be improved by adjusting the solvent, temperature
作者:Veerappan Tamilthendral、Gunasekaran Balamurugan、Rengan Ramesh、Jan Grzegorz Malecki
DOI:10.1002/aoc.6561
日期:2022.3
strategy is operationally simple and scalable and tolerates various functional groups undermild reaction conditions. Notably, an aldehyde and aryl-2-quinoline-2-yl-ethanol intermediate are involved in the catalytic reaction mechanism. The utility of the present procedure is demonstrated through a facilesynthesis of the antifungal drug (E)-2-(2-(pyridin-4-yl)vinyl)quinoline.