Synthesis and antifungal activity of new N-(1-phenyl-4-carbetoxypyrazol-5-yl)-, N-(indazol-3-yl)- and N-(indazol-5-yl)-2-iodobenzamides
摘要:
N-(1-Phenyl-4-carbetoxypyrazol-5-yl)-, N-(indazol-3-yl)- and N-(indazol-5-yl)-2-iodobenzamides 6, with a Benodanil-like structure, were synthesized by refluxing in acetic acid the corresponding benzotriazin ones 5 with potassium iodide for 1 h in order to study the role on the antifungal activity of the N-substitution with an aromatic heterocyclic system on benzamide moiety. Among the tested iododerivatives, compounds 6d,f,g,h possess interesting activities toward some phytopathogenic fungal strains. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Synthesis, Crystallographic Studies and Biological Evaluation of Some 2-Substituted 3-Indazolyl-4(3H)-quinazolinones and 3-Indazolyl-4(3H)-benzotriazinones
摘要:
A number of new 3-(indazol-3 and 5-yl)-4(3H)-quinazolinone and 4(3H)-benzotriazinone derivatives were prepared by reaction of 3- or 5-(2-aminobenzamido)indazole with ethyl orthoesters and nitrous acid respectively. Structures were established on the basis of analytical and spectroscopic data. Single-crystal X-ray analysis confirmed the quinazolinone structure of compounds (5). The 4(3H)-quinazolinones and 4(3H)-benzotriazinones were tested at 200 mu g/ml for antimicrobial activity against C. albicans, C. tropicalis and S. aureus, at 100 mu M for their antitumor effect on human-lymphoblast-like cells and finally at 500 mu M for 3 alpha-hydroxysteroid dehydrogenase (3 alpha-HSD) inhibition.