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- Publications
- Influence
Synthesis of 9α-hydroxysteroids by a Rhodococcus sp.
- V. K. Datcheva, N. Voishvillo, A. Kamernitskii, R. Vlahov, I. Reshetova
- Chemistry
- 1 September 1989
Abstract 9α-Hydroxylation of Δ5-3β-hydroxysteroids (of androstane, pregnane, 24-nor- and 21,24-bisnorcholane groups) was carried out by a Rhodococcus sp. , isolated from a petroleum-containing soil… Expand
Long-acting contraceptive agents: Cyclopropyl and cyclobutyl esters of norethisterone
- A. Shafiee, M. Vossoghi, F. Savabi, R. Vlahov, G. Snatzke
- Chemistry, Medicine
- Steroids
- 1 March 1983
Several esters of norethisterone (17 alpha-ethynyl-17 beta-hydroxyestr-4-en-3-one) with carboxylic acids containing a cyclopropyl or cyclobutyl ring have been synthesized and the stereochemistries of… Expand
Synthesis of galanthamine: intramolecular para-ortho-coupling of diaryl ethers by anodic oxidation
- D. Krikorian, R. Vlahov, +5 authors G. Snatzke
- Chemistry
- 1984
Abstract Intramolecular para-ortho-coupling of the amide 4 to 7 was achieved by anodic oxidation in acetonitrile solution (containing 2% of methanol) in eighty % yield.
Microbial transformation of 3-desoxy-dihydromorphinanes
- G. Spassov, W. R. Abraham, +4 authors R. Vlahov
- Chemistry
- Applied Microbiology and Biotechnology
- 2004
Summary3-Desoxymorphinanes should be transformed by microbial hydroxylation of the aromatic ring to morphinanes. Instead of this reaction the investigated N-derivatives (H, CH3, COCH2OH and… Expand
Microbial transformations of galanthamin-precursors
- G. Spassov, W. R. Abraham, +5 authors G. Snatzke
- Chemistry
- Applied Microbiology and Biotechnology
- 2004
SummaryGalanthamin is a medical important alkaloid. Its chemical synthesis gives a racemic product in low yields. Starting with a belladinderivative an enzymatic ring closure should lead exclusively… Expand
A New Synthesis of Roxatidine Acetate
- V. Tarpanov, R. Vlahov, +5 authors W. Schunack
- Chemistry
- 1999
Abstract A new four-step synthesis of N-{3-[3-(l-piperidinylmethyl)-phenoxy]propyl}acetoxyacetamide hydrochloride has been performed. The key aralkyl ether was synthesized in high yield under… Expand
Synthesis of polysubstituted 2,4-dimethylquinolines as potential antimalarial drugs
- S. Parushev, Yoncho Vlahov, R. Vlahov, P. Nickel, G. Snatzke
- Chemistry
- 1991
A synthetic way for obtaining 6-amino-2,4-dimethylquinoline derivatives from 2,5-dichloraniline by successive ring closure, nitration, aromatic substitution at so activated quinoline ring, followed… Expand
Microbiological dehydrogenation of polyfunctional Δ5-3β-acetoxy steroids by Corynebacterium mediolanum strain B-964
- V. Datcheva, A. Kamernitskii, +4 authors E. Chernoburova
- Chemistry
- Applied Microbiology and Biotechnology
- 1 October 1986
SummaryA high-yield microbiological transformation of polyfunctional Δ5-3β-acetoxy steroids, containing an additional ring E, by Corynebacterium mediolanum strain B-964 was carried out, resulting in… Expand
Synthesis of Galanthamine and Related Alkaloids - New Approaches. Part 1.
- R. Vlahov, D. Krikorian, +8 authors W. Sheldrick
- Chemistry
- 3 October 1989