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Dive into the research topics where R. P. Litvinovskaya is active.

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Featured researches published by R. P. Litvinovskaya.


ChemInform | 2001

Synthesis and Transformations of 20-Isoxazolylsteroids with Modified D Ring: I. Synthesis of 16α,17α-Epoxyderivatives

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach

Synthesis of 16α,17α-epoxy-20-isoxazolylsteroids was carried out starting with dehydropregnenolone acetate. Transformation procedures for preparation therefrom of open-chain compounds were considered. Physico-chemical characteristics of compounds synthesized were investigated.


ChemInform | 2001

Synthesis of 17-Dihydroisoxazolyl Steroids of the Androstane and Estrone Series

R. P. Litvinovskaya; S. V. Drach; Yu. I. Lapchinskaya; V. A. Khripach

Abstract1,3-Dipolar cycloaddition of nitrile oxides to 17β-hydroxy-17α-vinyl steroids of the estrone series proceeds both regio- and stereoselectively. The stereoselectivity of the process decreases in going to steroids of the androstane series. The major epimer has S configuration of the new chiral center.


ChemInform | 2000

Steroidal 1,2‐Oxazoles. Synthesis and Biological Activity

S. V. Drach; R. P. Litvinovskaya; V. A. Khripach


ChemInform | 2000

D-Homorearrangement of 17β-Hydroxysteroids at Treatment with Acids.

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach


ChemInform | 2010

Synthesis of 20α-Methylsteroids with an Isoxazoline Ring in the Side Chain

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach


ChemInform | 2010

Synthesis of Steroids Containing a Vicinal Diol Group in the Side Chain via Formation of Isoxazoline Intermediates.

R. P. Litvinovskaya; S. V. Drach; N. V. Koval; V. A. Khripach


ChemInform | 2010

A New Synthetic Way to the Side Chain of 28-Norbrassinolide

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach


ChemInform | 2010

Synthesis and Hydroxylation of δ22-24-Oxosteroids.

V. A. Khripach; R. P. Litvinovskaya; A. V. Baranovskii; S. V. Drach


ChemInform | 2010

Synthesis of Steroids Containing Polyhydroxylated Side Chains via 22-Isoxazol-5′-ylsteroids.

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach


ChemInform | 2010

Novel Methodology for the Introduction of a 22,23-Diol Fragment in the Side Chain of Steroids.

R. P. Litvinovskaya; S. V. Drach; V. A. Khripach

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S. V. Drach

National Academy of Sciences of Belarus

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V. A. Khripach

National Academy of Sciences of Belarus

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Yu. I. Lapchinskaya

National Academy of Sciences of Belarus

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