Summary
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1.
From the mixture of alkaloids ofH. foliosum has been isolated a new base — folisine — which is 1-methyl-α,β-dihydrofurano-4-quinolone with a substituting group on the α-carbon atom.
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2.
The transition from dubinidine to folisine has been effected by the reaction of dubinidine methiodide with anhydrous pyridine.
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3.
When dubinidine is heated with methyl iodide in a sealed tube, the usual isomerization takes place and folisine is formed.
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Additional information
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 629–631, September–October, 1971.
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Bessonova, I.A., Yunusov, S.Y. The structure of folisine. Chem Nat Compd 7, 608–610 (1971). https://doi.org/10.1007/BF00568419
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DOI: https://doi.org/10.1007/BF00568419