Summary
1. A phytoecdysone identified as viticosterone E has been isolated from a methanolic extract of the leaves ofSerratula sogdiana Bge.
2. A partial synthesis of viticoste rone E from ecdysterone has been effected by two methods — via the 2,3: 20,22-diacetonide and via the 2,3,22,25-tetraacetate.
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Literature cited
I. L. Zatsny, M. B. Gorovits, and N. K. Abubakirov, Khim. Prirodn. Soedin., 840 (1971).
M. N. Galbraith and D. H. S. Horn, Aust. J. Chem.,22, 1045 (1969).
H. Rimpler, Tetrahedron Lett., 329 (1969); Präp. Pharm.,6, 101 (1970).
Additional information
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 175–178, March–April, 1973.
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Zatsny, I.L., Gorovits, M.B. & Abubakirov, N.K. Phytoecdysones of serratula II. Viticosterone E from Serratula sogdiana and its partial synthesis. Chem Nat Compd 9, 170–173 (1973). https://doi.org/10.1007/BF00563337
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DOI: https://doi.org/10.1007/BF00563337