Summary
1. Robustinine, haplopine, and the new bases folifine and folifidine have been isolated from the mother liquors fromHaplophyllum foliosum VVed.
2. Folifidine has the structure 1-methyl-α, α-dimethyl-β-hydroxy-α, β-dihydropyrano-4-quinolone.
3. Folifidine has been identified as 1-methyl-4-methoxy-8-hydroxy-2-quinolone.
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References
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Khimiya Prirodnykh Soedinenii, Vol. 3, No. 4, pp. 257–260, 1967
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Faizutdinova, Z.S., Bessonova, I.A. & Yunusov, S.Y. Structure of folifine and folifidine. Chem Nat Compd 3, 215–217 (1967). https://doi.org/10.1007/BF00564119
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DOI: https://doi.org/10.1007/BF00564119