Development of structure — Activity trends in the series of 3-phenoxychromone derivatives
作者:S. A. Vasil'ev、V. L. Boyarchuk、M. S. Luk'yanchikov、V. P. Khilya
DOI:10.1007/bf00767267
日期:1991.11
e (IIa-o), containing both electron-donor and electron-acceptor substituents in the phenoxyl part of the molecule. These compounds were obtained by the action of phosphorus chloride on the complex of the compound (Ia-o) with boron trifluoride etherate in dimethylformamide. The acylation of the compound (II) with acetic anhydride in the presence of pyridine gave the corresponding acetates (IIl).
Mannich reaction in the series of 7-hydroxy-3-phenoxychromones and their derivatives
作者:M. M. Garazd、Ya. L. Garazd、A. S. Ogorodniichuk、V. V. Shilin、A. V. Turov、V. P. Khilya
DOI:10.1007/bf02329591
日期:1998.7
The Mannich condensation of amino acids with 3-phenoxychromones and polyhydroxy-α-phenoxyacetophenones has given a series of 8-carboxyalkylaminomethylchromones and 3-carboxymethylaminomethyl-2,4-dihydroxy-α-phenoxyacetophenones. Some features of the course of the Mannichreaction as a function of the structures of the chromones and acetophenones have been studied.
A method of reducing the virulence of a bacterium that expresses accessory gene regulator A (AgrA) or an ortholog of AgrA includes administering to the bacterium an amount of a pharmaceutical composition effective to inhibit the synthesis of one or more virulence factors by the bacterium, the pharmaceutical composition including an AgrA antagonist.