K. A. Dzhazin

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The spatial structure of 2,4-dideacetyldihydroxyinuchinenolide C has been established by the x-ray structural method. On the basis of an analysis of known crystal structures of linear trans, trans-conjugated pseudoguanolides using the method of molecular mechanics it has been shown that a partial pseudo-rotation of the seven-membered carbocycle in these(More)
Artemisia juncea Kar. et Kir. a plant widely distributed on the territory of Kazakhstan grows in the steppe and desert zones on detrital, clayey, and rocky slopes of hills and mountains [I]. There are contradictory statements in the literature concerning the presence of sesquiterpene laetones in A. juncea. According to M. I. Goryaev [2], the epigeal part of(More)
Analogs of helenalin possessing a broad spectrum of biological activity have been synthesized from the readily available sesquiterpene lactones britanin and inuchenolide C. Conditions for the hydrolysis, oxidative transformations, and skeletal rearrangements of the pseudoguaianolides that are characteristic for plants of the genus hula have been studied.
One of the objective and convenient methods of evaluating the antioxidant activities (AOAs) of various systems is the initiation of chemiluminescence (CL) [1]. By this method we have studied in vitro the AOAs of nine sesquiterpene lactones isolated from Kazakhstan plants and their modified derivatives (~-santonin (1),(More)
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