منابع مشابه
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).
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Five new triterpenoid saponins, pastuchoside A (1), B (3), C (5), D (7) and E (9), were isolated from the leaves of Hedera pastuchowii. They have oleanolic acid or hederagenin as aglycone. The structures were established by NMR spectroscopy including gs (gradient selected)-COSY, gs-HSQC, gs-HSQC-TOCSY and gs-HMBC experiments, and mass spectrometry (ESI-HR-MS). Heptaoside saponins, compounds 1 a...
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The story of rutin begins in 1842, when it was first prepared by a pharmacist-chemist of Nuremberg, Germany, named August Weiss, who obtained it from garden rue, Ruta graveolens. As time went on, chemists found rutin in a number of plants. Rutin is a yellow, crystalline powder with the formula C^iKnO^^/dK^O. It is only slightly soluble in water, more soluble in alcohol, acetone, and alkaline so...
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ژورنال
عنوان ژورنال: Chemistry of Natural Compounds
سال: 1971
ISSN: 0009-3130,1573-8388
DOI: 10.1007/bf00564766