Cyanogenesis in Passifloraceae.
A novel cyclopentenoid cyanogenic bis-glycoside has been isolated from Passiflora capsularis L. Its structure has been tentatively determined as 4-boivinosyl tetraphyllin B. The name passicapsin is proposed for this compound. Linamarin has been isolated from Passiflora warmingii Mast. Extracts of Passiflora perfoliata L. yielded a (probably glycosidic) cyclopentenone dervative, which possibly originated from an unstable glycoside having a free alpha-hydroxynitrile group.
Fischer
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FC
Department of Pharmacognosy, State University of Leiden, Gorlaeus Laboratories, Leiden, The Netherlands.
Fung
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SY
Lankhorst
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PP