Synthèse, activités anti-parasitaire et anti-fongique d'arylalkyl- et d'arylvinylthiazolines
摘要:
Twenty-seven arylalkyl- or arylvinylthiazolines were synthesized and tested in vitro against three genera of nematodes, various yeasts and opportunistic fungi. Vinyl compounds seem to have an interesting filaricidal activity against Molinema dessetae and anti-fungal activity against yeasts.
Bis-Cationic Heteroaromatics as Macrofilaricides: Synthesis of Bis-Amidine and Bis<i>-</i>Guanylhydrazone Derivatives of Substituted Imidazo[1,2-<i>a</i>]pyridines
作者:Richard J. Sundberg、Sujay Biswas、Krishna Kumar Murthi、Donna Rowe、John W. McCall、Michael T. Dzimianski
DOI:10.1021/jm9803368
日期:1998.10.1
A series of guanylhydrazone, amidine, and hydrazone derivatives of 2-phenylimidazo[1,2-a]pyridine have been prepared and evaluated for macrofilarial activity against Acanthocheilonema viteae and Brugia pahangi in jirds. Compounds with 4',6-bis-substitution by cyclic guanylhydrazone groups show activity. 4',6-Bis-amidines show some activity but are more toxic; 4'- or 6-monosubstituted compounds are inactive. 2,6-Bis-substituted compounds lacking the phenyl ring are inactive. 4',6-Bis-substituted compounds having additional double bonds inserted between the heterocyclic ring and the phenyl ring or between the substituent and the ring system show reduced activity.
Synthèse, activités anti-parasitaire et anti-fongique d'arylalkyl- et d'arylvinylthiazolines
Twenty-seven arylalkyl- or arylvinylthiazolines were synthesized and tested in vitro against three genera of nematodes, various yeasts and opportunistic fungi. Vinyl compounds seem to have an interesting filaricidal activity against Molinema dessetae and anti-fungal activity against yeasts.
Synthesis of New Asymmetric Phosphonylated Thiazolines and their Use in Olefination Reactions
N-(2-Hydroxyalkyl)-2-phosphonoethanethioamides were prepared from a readily accessible phosphonodithioacetate and commercial chiral β-amino alcohols. Taking advantage of both the presence of the hydroxy group (nucleofuge) and of the C=S (nucleophile) in the same molecule, we obtained new chiral phosphonylated thiazolines by an intramolecular cyclisation using the Mitsunobu procedure. These thiazoline-phosphonates were then involved in Horner-Wadsworth-Emmons reaction to give asymmetric vinylic thiazolines.