Summary
1. It has been shown that in the chemical reactions for obtaining the N-oxides of lupinine and tropine the bicyclic systems of quinolizidine and tropane exhibit a conformational lability due to inversion.
2. On the basis of IR and PMR spectra the structure and conformation of the isomeric N-oxides of lupinine and tropine have been determined.
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Additional information
V. I. Lenin Tashkent State University. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 477–483, July–August, 1972.
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Yunusov, T.K., Leont'ev, V.B., Kamaev, F.G. et al. Conformational transformations of the alkaloids lupinine and tropine on the formation of their N-oxides. Chem Nat Compd 8, 473–477 (1972). https://doi.org/10.1007/BF00563672
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DOI: https://doi.org/10.1007/BF00563672