An improved synthetic strategy for 1-substituted 4-H phthalazines using a convenient, three-step reaction sequence under mild conditions is described. The protocol involves condensation of hydrazine hydrate with o-ketobenzaldehydes derived through the Pb(OAc)4 oxidation of the N-acylhydrazones of salicylaldehydes. This pathway is of high practical value since a wide variety of substituted acylhydrazides
A library of acylhydrazone iron chelators was synthesized and tested for its ability to inhibit the growth of a chloroquine-resistant strain of Plasmodium falciparum. Some of these new compounds are significantly more active than desferrioxamine DFO, the iron chelator in widespread clinical use and also than the most effective chelators. (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis of new acylhydrazones as iron-chelating compounds
作者:John T. Edward、Mario Gauthier、Francis L. Chubb、Premysl Ponka
DOI:10.1021/je00054a044
日期:1988.10
Dey, Kamalendu; Bandyopadhyay, Debasish; Bhattacharya, Prabir Kumar, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1996, vol. 35, # 2, p. 107 - 111