27 タマサキツヅラフジカルスの成分について
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Five new fluorescent compounds, cepharanone A, B, cepharadione A, B and norcepharadione B were isolated from the neutral fraction of the callus tissue of Stephania cepharantha. Cepharanone A and B were aristololactam derivatives, and the structure of them were decided as (I) and (II). Cepharadione A, B and norcepharadione B had ketolactam in the B ring of aporphine skeleton, and the structure of them were proposed as (III), (IV) and (V) on the basis of their spectral data. The isolation of these compounds, related to aristolcilactam, from the natural sources was very interesting problem from the chemotaxonomical and biogenetical point of view.
- 天然有機化合物討論会の論文
- 1974-10-01
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