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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1377–1380, October, 1979.
B. The same compound was obtained in a similar manner to A from the hydroxypiperidone (IVb) using 20% HCl. Yield was 60%.
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Bomika, Z.A., Pelcher, Y.É., Dubur, G.Y. et al. Cyclization of some δ-ketoamides. Chem Heterocycl Compd 15, 1110–1113 (1979). https://doi.org/10.1007/BF00471912
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DOI: https://doi.org/10.1007/BF00471912