Abstract
A new isoflavonostilbene which has been called maackiasin has been isolated from an ethanolic extract of the heartwood ofMaackia amurensis and its structure has been established by spectral methods. The maackiasin molecule is constructed of fragments of the isoflavone retusin and of 3,3′,4′,5-tetrahydroxystilbene linked by a diether bond. The dioxane grouping connecting the two fragments is constructed from the hydroxyls at C-7 and C-8 of the isoflavone and the vinyl grouping of the stilbene. Maackiasin is the first representative of a new type of natural polyphenols.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
O. B. Maksimov, O. E. Krivoshchekova, L. S. Stepanenko, and L. V. Boguslavskaya, Khim. Prir. Soedin., 775 (1985).
P. K. Agrawai and R. P. Rastogi, Heterocycles,16, 2181 (1981).
M. L. Sethi, S. C. Taneja, S. G. Agarwal, K. L. Dhar, and C. K. Atal, Phytochemistry,19, 1831 (1980).
A. Pelter and R. Hänsel, Chem. Ber.,108, 790 (1975).
A. Pelter, M. P. Rochefort, and R. Hänsel, J. Chem. Soc. Chem. Commun., 695 (1979).
K. R. Ranganathan and T. R. Seshadri, Tetrahedron Lett., 3481 (1973).
G. G. Zapesochnaya and V. A. Kurkin, Khim. Prir. Soedin., 23 (1983).
Additional information
Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 39–42, January–February, 1986.
Rights and permissions
About this article
Cite this article
Krivoshchekova, O.E., Stepanenko, L.S. & Maksimov, O.B. A new isoflavonostilbene from the heartwood of Maackia amurensis. Chem Nat Compd 22, 35–38 (1986). https://doi.org/10.1007/BF00574576
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00574576