Investigations on Hoya Species . III . Leaf Phenolics and Latex Lipids of Hoya lacunosa Bl . *
نویسنده
چکیده
Hoya lacunosa, Asclepiadaceae, C-Glycosylflavonoids, Latex, Triterpenoids, 4-ar-Methylsterols Hoya lacunosa leaves contain some main C-glycosylflavonoids, which were identified as: 6-Carabinosyl 8-C-glucosylapigenin (isoschaftoside), 6-C-glucosyl 8-C-arabinosylapigenin (schaftoside) and 6,8-di-C-arabinosylapigenin. In the latex triterpenols were found, often both free and in ester form, of which /?-amyrin, a-amyrin, lupeol, 24-methylenecycloartanol, obtusifoliol and cycloeucalenol were identified in the free alcohol fraction. The esters, forming the major part of the to tal lipid fraction, were solely acetates of some of the above mentioned alcohols.
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Investigations on Hoya species, II. Latex Lipids and Leaf Phenolics of Hoy a bella Hook *
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