Synthesis and a UV and IR spectral study of some 2-aryl-Δ-<sup>2</sup>-1,3,4-oxadiazoline-5-thiones
作者:D. A. Charistos、G. V. Vagenas、L. C. Tzavellas、C. A. Tsoleridis、N. A. Rodios
DOI:10.1002/jhet.5570310653
日期:1994.11
2-Aryl-Δ-2-1,3,4-oxadiazoline-5-thione derivatives 2 were synthesized and their uv and ir spectra were studied. Correlation between σ-Hammett constants of aryl substituents and the differences in absorption maxima (Δv = v1-v2 in kK) of the electronic spectra of the deprotonated species were also evaluated. A new method for the synthesis of the 2-(amino)aryl derivatives 2v,w,x is also reported.
二十四2-芳基Δ- 2 -1,3,4-恶二唑啉-5-硫酮衍生物2的合成和它们的UV和IR光谱进行了研究。还评估了芳基取代基的σ-Hammett常数与去质子化物种的电子光谱的吸收最大值差异(Δv= v 1 -v 2以kK为单位)之间的相关性。还报道了合成2-(氨基)芳基衍生物2v,w,x的新方法。
Using a rational approach to the design of antifungal agents, a series of azole agents with 1,3,4-oxadiazole side chains were designed and synthesized. The results of preliminary in vitro antifungal tests with eight human pathogenic compounds showed that all of the title compounds exhibited excellent activities against all of the tested fungi except Aspergillus fumigatus. Compounds 11e and 11f were found to be the most effective, with a minimum inhibitory concentration of 0.0039 mu g/mL, followed by voriconazole, which has a MIC of 0.0625 mu g/mL. The 1,3,4-oxadiazole side chain is not the major contributor but plays a role in eliciting the observed antifungal activity. (C) 2013 Elsevier Ltd. All rights reserved.