Kopsirachin, ein ungewöhnliches Alkaloid
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Katharina Homberger; Manfred Hesse
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Article
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1984
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John Wiley and Sons
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German
⚖ 616 KB
From the leaves of Kopsiu dusyruchis Ridl. a new type of alkaloid, kopsirachine (l), built up from catechin (2) and skytanthine (3) has been isolated. The structure elucidation is based on spectral and chemical evidence. Oxidative cleavage of its derivative 4 with KMnO, afforded veratric acid which