Furocoumarins of the fruit ofHeracleum asperum and of the roots ofH. apiifolium

Chemistry of Natural Compounds -     

Triterpenoid saponins from berries of Hedera colchica.

Fifteen triterpenoid saponins were isolated from the berries of Hedera colchica and their structures established on the basis of chemical and spectroscopic evidence. Among them, two are new compounds: coichiside A (3) and colchiside B (15) and four are described for the first time in the berries of Hedera colchica (compounds 1, 8, 9 and 11).     

Triterpene glycosides ofHedera colchica. Structure of hederacolchisides E and F

The leaves of Colchis ivy (family Araliaceae) have yielded polar glycosides — hederacolchisides E and F — and their structures have been established. It has been shown on the basis of the results of methylation and of acid and alkaline hydrolysis that these glycosides are hexaosides of oleanolic acid and of hederagenin.     

A ketosapogenin from the leaves of Yucca gloriosa

A native ketosapogenin of the spirostane series (25R)-5-spirostan-3-one) has been isolated from the leaves of mound lily yucca.I. G. Kutateladze Institute of Pharmacochemistry Academy of Sciences of the Georgian SSR, Tbilisi. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 244–246, March–April, 1991.