Abstract
The alkaloid composition of the leaves ofBerberis densiflora has been studied. Berberine, β-allocryptopine. oxyacanthine, glaucine, thalicmidine, isocorydine, O-methylcorypalline and the new bases densinine and densiberine have been isolated. The structures of the new alkaloids have been established by a study of spectral characteristics and chemical transformations. This is the first time that any of the known alkaloids, apart from berberine, have been isolated from a plant of this pecies and it is the first time that β-allocryptopine and O-methylcorypalline have been isolated from theBerberis genus.
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Khamidov, I.I., Aripova, S.F., Telezhenetskaya, M.V. et al. Berberis alkaloids XXXIX. New alkaloids fromB. densiflora . Chem Nat Compd 33, 323–325 (1997). https://doi.org/10.1007/BF02234886
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DOI: https://doi.org/10.1007/BF02234886