Interaction of 1-acylamino-2,2-dichloroethenyl(triphenyl)phosphonium chlorides with alkanolamines
作者:O. V. Golovchenko、E. R. Abdurakhmanova、S. O. Vladimirov、M. Y. Brusnakov、T. O. Krupoder、V. V. Sukhoveev、E. B. Rusanov、R. N. Vydzhak、V. S. Brovarets
DOI:10.1080/10426507.2020.1759062
日期:2020.10.2
Abstract It is shown that the interaction of 1-acylamino-2,2-dichloroethenyl(triphenyl)-phosphonium chlorides with alkanolamines having a primary amino group results in the formation of 4-oxazolylphosphonium salts containing hydroxyalkylamine substituents at position 5 of the oxazole cycle. Under similar conditions the reaction of N-substituted alkanolamines with 1-acylamino-2,2-dichloroethenyl-(t
Brovarets, V. S.; Kurg, V. V.; Vinogradova, T. K., Journal of general chemistry of the USSR, 1992, vol. 62, # 5.2, p. 886 - 889
作者:Brovarets, V. S.、Kurg, V. V.、Vinogradova, T. K.、Smolii, O. B.、Drach, B. S.
DOI:——
日期:——
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作者:V. S. Brovarets、R. N. Vydzhak、S. G. Pil'o、K. V. Zyuz'、B. S. Drach
DOI:10.1023/a:1013982122431
日期:——
Treatment of 1-phosphorylated 2,2-dichloroethenylcarboxamides with excess hydrazine hydrate gives in high yields phosphorylated derivatives of 2-alkyl(aryl)-5-hydrazinooxazoles containing the P(O)(OCH3)(2), P(O)(OC2H5)(2), and P+(C6H5)3ClO(4)(-) groups in the 4-position of the ring. The presence of the hydrazine group in these oxazole derivatives was confirmed not only by the spectral data, but also by the reactions with p-toluic aldehyde, p-toluic chloride, and phenyl isothiocyanate.
In silico and in vitro studies of a number PILs as new antibacterials against MDR clinical isolate
<i>Acinetobacter baumannii</i>
作者:Maria M. Trush、Vasyl Kovalishyn、Diana Hodyna、Olexandr V. Golovchenko、Svitlana Chumachenko、Igor V. Tetko、Volodymyr S. Brovarets、Larysa Metelytsia
DOI:10.1111/cbdd.13678
日期:2020.6
AbstractQSAR analysis of a set of previously synthesized phosphonium ionic liquids (PILs) tested against Gram‐negative multidrug‐resistant clinical isolate Acinetobacter baumannii was done using the Online Chemical Modeling Environment (OCHEM). To overcome the problem of overfitting due to descriptor selection, fivefold cross‐validation with variable selection in each step of the model development was applied. The predictive ability of the classification models was tested by cross‐validation, giving balanced accuracies (BA) of 76%–82%. The validation of the models using an external test set proved that the models can be used to predict the activity of newly designed compounds with a reasonable accuracy within the applicability domain (BA = 83%–89%). The models were applied to screen a virtual chemical library with expected activity of compounds against MDR Acinetobacter baumannii. The eighteen most promising compounds were identified, synthesized, and tested. Biological testing of compounds was performed using the disk diffusion method in Mueller‐Hinton agar. All tested molecules demonstrated high anti‐A. baumannii activity and different toxicity levels. The developed classification SAR models are freely available online at http://ochem.eu/article/113921 and could be used by scientists for design of new more effective antibiotics.
Lobanov, O. P.; Martynyuk, A. P.; Drach, B. S., Journal of general chemistry of the USSR, 1980, vol. 50, p. 1816 - 1824