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This article is cited in 7 scientific papers (total in 7 papers)
Transformation of 9α,14α-epoxy-14-deoxy-20-hydroxyecdysone diacetonide into 25-hydroxydachryhainansterone
N. A. Veskina, A. Sh. Ibragimova, I. V. Galyautdinov, L. M. Khalilov, V. N. Odinokov Institute of Petrochemistry and Catalysis, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
Abstract:
9α,14α-Epoxy-14-deoxy-20-hydroxyecdysone diacetonide on treatment with NaBH4 undergoes reduction of 6-keto group and cleavage of allylic oxetane ring, the 6-keto reduction is accompanied by β→α epimerization of the adjacent HC5 centre. Subsequent re-oxidation of the 6-CHOH fragment into ketone with pyridinium chlorochromate and acidic deprotection affords 25-hydroxydachryhainansterone possessing β-HC5 configuration due to the re-epimerisation at this centre.
Keywords:
ecdysteroids, oxetane cycle,
7,9-dien systeme, 25-hydroxydachryhainansterone.
Citation:
N. A. Veskina, A. Sh. Ibragimova, I. V. Galyautdinov, L. M. Khalilov, V. N. Odinokov, “Transformation of 9α,14α-epoxy-14-deoxy-20-hydroxyecdysone diacetonide into 25-hydroxydachryhainansterone”, Mendeleev Commun., 20:5 (2010), 293–295
Linking options:
https://www.mathnet.ru/eng/mendc3071 https://www.mathnet.ru/eng/mendc/v20/i5/p293
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