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Journals and Conferences
The structure, properties, distribution in nature, and biological activity of sterol glycosides and acylglycosides are reviewed.
Progesterone biotransformation with recombinant yeasts Yarrowia lipolytica E129A15 and Saccharomyces cerevisiae GRF18/YEp5117α expressing bovine adrenocortical cytochrome P-45017α yielded… (More)
New esters 2-5 that contain 6-chloropyridine groups characteristic of the alkaloid epibatidine were prepared by acylation of 20-hydroxyecdysone (1) by 6-chloronicotinoylchloride.
New esters of 3β,5α,6β-trihydroxysteroids and 3β,5-dihydroxy-6-ketosteroids containing 6-chloropyridine groups characteristic of the alkaloid epibatidine were synthesized by acylation with… (More)
The flavonol glycoside astragalin 1 was isolated from the aerial part of Gymnocarpium dryopteris in 0.70% yield. Its structure was determined using spectral data.
Reduction of 17α-hydroxyprogesterone (1) with NaBH 4 produces 17α,20β-dihydroxypregn-4-en-3-one (2) and pregn-4-en-3β,17α,20β-triol (3)
Preparative methods of synthesizing a number of natural 6-ketosteroids and 6-alcohols related to them from β-sitosterol have been developed.
Kaempferol (2) was isolated from the aerial part of the oak fern Gymnocarpium dryopteris by extraction and subsequent acid hydrolysis of the glycoside mixture.
Methods have been developed for the chemical transformation of cortisol and cortisone in derivatives of 19-hydroxycortisol.
For obtaining 19-hydroxytestosterone from dehydroepiandrosterone a new scheme of synthesis has been developed the key stages of which are the reduction of the 17-keto group to a 17-alcohol, the… (More)