M. R. Yagudaev
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The structure of the new alkaloid aconifine, which has been isolated from the tubers and epigeal part ofAconitum karakolicum Rapcs. has been established on the basis of the results of chemical… Continue Reading
SummaryOn the basis of their CD spectra, the alkaloids veralosidine, veralosine, veralosinine, and veralosidinine have been assigned to the 25S series.
The new diguaianolide anabsin, C30H40O7, mp 276°C (decomp.), [α]25 +110° (c 1.7; acetone) has been isolated fromArtemisia absinthium L. Anabsin acetate, dehydroanabsin, and dehydroanabsin acetate… Continue Reading
The complete cycle of the transformation of gossypol in solutions takes place in the measuring ampul of a NMR spectrometer. It has been established for the first time that, in methanol, gossypol is… Continue Reading
From the epigeal part ofThermopsis alterniflora Rgl.et Schmalh. (Fabaceae), in addition to formononetin, ononin, cynaroside, and rothindin, two new acylated flavone glycosides have been isolated and,… Continue Reading
The arylnaphthalene lignans justicidin B and daurinol I have been isolated from the epigeal part ofHaplophyllum dauricum (L.) G. Don.
The frequencies and integral intensities of the IR bands of the stretching vibrations of lactone and acyclic ester carbonyls at C-8 of ten natural guaianolides and their derivatives, and of three… Continue Reading