Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Yuliya Y. Zhiburtovich"'
Autor:
Yuliya Y. Zhiburtovich, Olga V. Konstantinova, Vladimir A. Khripach, Bernd Schneider, Vladimir N. Zhabinskii, Sybille Lorenz, Dmitrii V. Tsavlovskii, Galina V. Ivanova
Publikováno v:
Steroids. 75:27-33
Preparation of partially protected brassinosteroids is achieved through the reaction of the source material (24-epicastasterone and 24-epibrassinolide) with diol-specific reagents (2,2-dimethoxypropane and methylboronic acid). The obtained products w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8246d6812ce38e59c2d648d4d89cf892
https://doi.org/10.1016/j.steroids.2009.09.010
https://doi.org/10.1016/j.steroids.2009.09.010
Autor:
Anna I. Kuchto, Marinus B. Groen, Aede de Groot, Yuliya Y. Zhiburtovich, Alexander S. Lyakhov, Vladimir N. Zhabinskii, Alla A. Govorova, Jaap van der Louw, Vladimir A. Khripach
Publikováno v:
Khripach, V A, Zhabinskii, V N, Kuchto, A I, Zhiburtovich, Y Y, Lyakhov, A S, Govorova, A A, Groen, M B, Louw, J P E & Groot, A M E 2006, ' Isolation and structure elucidation of new radical oxidation products of 5-hydroxy steroids ', Steroids, vol. 71, pp. 504-509 . https://doi.org/10.1016/j.steroids.2006.01.008
Steroids, 71(6), 504-509
Steroids 71 (2006) 6
Steroids, 71, 504-509. Elsevier Inc.
Steroids, 71(6), 504-509
Steroids 71 (2006) 6
Steroids, 71, 504-509. Elsevier Inc.
Three new products have been isolated from the lead-tetraacetate version of the hypoiodite oxidation of 3 beta,17 beta-diacetoxy-5-hydroxy-5 alpha-androstane. Along with the expected 1(10)unsaturated 5,10-seco steroidal 5-ketones, the fragmentation r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17a4bd69bfd583c8d81700e38d23e6ac
https://doi.org/10.1016/j.steroids.2006.01.008
https://doi.org/10.1016/j.steroids.2006.01.008
Autor:
Alexander S. Lyakhov, Galina P. Fando, Yuliya Y. Zhiburtovich, Vladimir N. Zhabinskii, Aede de Groot, Alla A. Govorova, Anna I. Kuchto, Marinus B. Groen, Jaap van der Louw, Vladimir A. Khripach
Publikováno v:
Steroids 69 (2004) 7
Steroids, 69(7), 501-509
Steroids, 69(7), 501-509
A number of testosterone analogs with a 13,14-secosteroidal fragment have been prepared from (13S)-13-iodo-6beta-methoxy-3alpha, 5-cyclo-13,14-seco-5alpha-androstan-14,17-dione. The key steps involved stereoselective deiodination of the starting comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52152fa77494d6fa4e46b770c91e1482
https://doi.org/10.1016/j.steroids.2004.04.010
https://doi.org/10.1016/j.steroids.2004.04.010
Autor:
Jaap van der Louw, Vladimir A. Khripach, Alexander S. Lyakhov, Yuliya Y. Zhiburtovich, Anna I. Kuchto, Marinus B. Groen, Natalya B. Khripach, Aede de Groot, Vladimir N. Zhabinskii
Publikováno v:
Khripach, V A, Zhabinskii, V N, Kuchto, A I, Zhiburtovich, Y Y, Khripach, N B, Lyakhov, A S, Groen, M B, Louw, J P E & Groot, A M E 2008, ' Synthesis of 5,10-seco analogs of testosterone ', Steroids, vol. 73, pp. 1424 . https://doi.org/10.1016/j.steroids.2008.07.005
Steroids, 73. Elsevier Inc.
Steroids 73 (2008) 14
Steroids, 73(14), 1424-1432
Steroids, 73. Elsevier Inc.
Steroids 73 (2008) 14
Steroids, 73(14), 1424-1432
A number of 5,10-seco analogs of testosterone has been synthesized starting from products of the radical oxidation of 3 beta,17 beta-diacetoxy-5 alpha-androstan-5 alpha-ol. The obtained compounds possess a flexible 10-membered ring with substituents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a432a12757ecd2dc2fba543fcf9496a
https://pubmed.ncbi.nlm.nih.gov/18703077
https://pubmed.ncbi.nlm.nih.gov/18703077
Autor:
Yuliya Y. Zhiburtovich, Natalya B. Khripach, Vladimir N. Zhabinskii, Bernd Schneider, Vladimir A. Khripach, Aede de Groot
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals 50 (2007) 13-14
Journal of Labelled Compounds and Radiopharmaceuticals, 50(13-14), 1153-1158
Journal of Labelled Compounds and Radiopharmaceuticals, 50(13-14), 1153-1158
Synthesis of labelled epibrassinolide containing two deuterium atoms in a position which is not subjected to isotopic exchange is reported. Key transformations include preparation of 6,7-seco steroidal diacid, its cyclization to a cyclic anhydride fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::951d150013cd3dc85588c63375656380
https://research.wur.nl/en/publications/synthesis-of-77-h-22epibrassinolide
https://research.wur.nl/en/publications/synthesis-of-77-h-22epibrassinolide
Autor:
Jaap van der Louw, Vladimir A. Khripach, Yuliya Y. Zhiburtovich, Anna I. Kuchto, Marinus B. Groen, Vladimir N. Zhabinskii, Aede de Groot, Vladimir V. Gromak
Publikováno v:
Tetrahedron Letters, 47(38), 6715-6718
Tetrahedron Letters 47 (2006) 38
Khripach, V A, Zhabinskii, V N, Kuchto, A I, Zhiburtovich, Y Y, Gromak, V V, Groen, M B, Louw, J P E & Groot, A M E 2006, ' Intramolecular cycloaddition/cycloreversion of (E)-3 beta,17 beta-diacetoxy-5,10-secoandrost-1(10)-en-5-one ', Tetrahedron Letters, vol. 47, pp. 6715-6718 . https://doi.org/10.1016/j.tetlet.2006.07.096
Tetrahedron Letters, 47, 6715-6718. Elsevier Limited
Tetrahedron Letters 47 (2006) 38
Khripach, V A, Zhabinskii, V N, Kuchto, A I, Zhiburtovich, Y Y, Gromak, V V, Groen, M B, Louw, J P E & Groot, A M E 2006, ' Intramolecular cycloaddition/cycloreversion of (E)-3 beta,17 beta-diacetoxy-5,10-secoandrost-1(10)-en-5-one ', Tetrahedron Letters, vol. 47, pp. 6715-6718 . https://doi.org/10.1016/j.tetlet.2006.07.096
Tetrahedron Letters, 47, 6715-6718. Elsevier Limited
Treatment of 3 beta,17 beta-diacetoxy-5,10-secoandrost-1(10)-en-5-one with (BF3Et2O)-Et-. was shown to proceed with cleavage of the macrocycle and formation of a new compound containing a cyclopentenone ring. Based on DFT calculations, an intramolecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbba661eff6f128a4e64983fa79459b6
https://research.wur.nl/en/publications/intramolecular-cycloadditioncycloreversion-of-e-3-beta17-beta-dia
https://research.wur.nl/en/publications/intramolecular-cycloadditioncycloreversion-of-e-3-beta17-beta-dia
Autor:
Yuliya Y. Zhiburtovich, Alla A. Govorova, Alexander S. Lyakhov, Galina P. Fando, Anna I. Kotyatkina, Vladimir N. Zhabinskii, Jaap van der Louw, Vladimir A. Khripach, Aede de Groot, Marinus B. Groen
Publikováno v:
Collection of Czechoslovak Chemical Communications, 66, 1764-1776
Collection of Czechoslovak Chemical Communications 66 (2001)
Collection of Czechoslovak Chemical Communications 66 (2001)
The radical oxidation of 14α-hydroxy steroids with various functional groups at C-17 was studied. Lead tetraacetate and ceric ammonium nitrate were used as oxidizing agents. It was shown that reactions of this type afforded complex mixtures of compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62504717a830a463a3d7a64abb53e90b
https://research.wur.nl/en/publications/radical-oxidation-of-17-functionalized-14alpha-hydroxy-steroids
https://research.wur.nl/en/publications/radical-oxidation-of-17-functionalized-14alpha-hydroxy-steroids