As part of a programme to identify further analogues of the dual topo I/II inhibitor XR11576, we describe here the syntheses and SAR studies of various 'minimal' and 3,4-benzofused phenazine chromophores of the phenazine template of XR11576.
A visible-light-induced radical cascade cyclization of ortho-diisocyanoarenes for the synthesis of diethyl benzo[a]phenazine-6,6(5H)-dicarboxylates has been developed. This process provides an efficient and convenient protocol for the construction of benzo[a]phenazine skeleton that widely present in biologically active molecules and pharmaceuticals. The reaction takes place under mild conditions and
已开发出用于合成苯并[ a ]吩嗪-6,6(5 H )-二羧酸二乙酯的邻二异氰芳烃的可见光诱导自由基级联环化。该过程为构建广泛存在于生物活性分子和药物中的苯并[ a ]吩嗪骨架提供了一种高效便捷的方案。该反应在温和的条件下进行,以中等至极好的收率获得产物。
A New Class of Phenazines with Activity against a Chloroquine Resistant <i>Plasmodium falciparum</i> Strain and Antimicrobial Activity
作者:Hidayat Hussain、Sabine Specht、Salem R. Sarite、Michael Saeftel、Achim Hoerauf、Barbara Schulz、Karsten Krohn
DOI:10.1021/jm200302d
日期:2011.7.14
New phenazines were synthesized by oxygenation of 1- and 2-naphthol with transition metal peroxo complexes and in situ reaction with 1,2-diamines. The title compounds were evaluated for in vitro antimalarial activity against Plasmodium falciparum and chloroquine-resistant strains. Phenazines 12, 27, and 28 were most prominent in growth inhibition. In vivo protection against cerebral malaria was observed with the phenazines 11, 12, 20, and 27, whereas partial protection was provided by 19.
Ullmann; Heisler, Chemische Berichte, 1909, vol. 42, p. 4263
作者:Ullmann、Heisler
DOI:——
日期:——
REWCASTLE G. W.; DENNY W. A.; BAGULEY B. C., J. MED. CHEM., 30,(1987) N 5, 254-256