Summary
From the bark and roots ofSpiraea hypericifolia L. we have isolated and identified proanthocyanidins consisting of dimers of 3,3′,4′,5,7-pentahydroxyflavans: a dimer from the bark (B-1) with the 2R:3R configuration of the asymmetric centers of the “top” half of the molecule and 2R:3S of the “bottom” half and a dimer from the roots with the 2R:3R configurations of the asymmetric centers of both the “top” and “bottom” halves of the molecule.
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Additional information
S. M. Kirov Kazakh State University, Alma-Ata. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 735–742, November–December, 1976.
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Pashinina, L.T., Storozhenko, N.D. & Chumbalov, T.K. Proanthocyanidin dimers fromSpiraea hypericifolia . Chem Nat Compd 12, 660–665 (1976). https://doi.org/10.1007/BF00564954
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DOI: https://doi.org/10.1007/BF00564954