Abstract
The proof of the structures of two isomeric alkaloids — nitramine and isonitramine — from two species of plants of the genusNitraria is given. Their diastereoisomerism with respect to the C7 asymmetric atom has been established. This is the first time that alkaloids with the structure of 2-azaspiro[5,5]undecan-7-ol have been found.
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Additional information
Institute of the Chemistry of Plant Substances of the Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 623–629, September–October, 1981.
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Ibragimov, A.A., Osmanov, Z., Tashkhodzhaev, B. et al. Structures of nitramine and isonitramine — Alkaloids of a new type from plants of the genusNitraria . Chem Nat Compd 17, 458–463 (1981). https://doi.org/10.1007/BF00565164
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DOI: https://doi.org/10.1007/BF00565164