Saponins (Chemistry and Pharmacology of Natural Products) by K. Hostettmann

By K. Hostettmann

This ebook is a well timed incursion into the sphere and offers information regarding prevalence and distribution, structural kinds, isolation, research and constitution selection of saponins. organic and pharmacological actions are mentioned, as are facets of commerical and commercial use. a number of examples are provided, supplying a priceless resource of information for the various periods of compound.

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Menez et al 1989} The formation of artifacts during hydrolysis reacdons is ako common. ller et al. 1988J Higuchi et al. (1987) were only able to separate saponins• *™ th^a< of QuiUaja saponaria (Rosaceae) after deacylatton with 6/ bicarbonate solution. Similarly, desacylmasonosides, polygalacc glycoskles from the corms of Crocosmia masoniorum (b*""* Elated after treatment of the crude saponin mixture with U sod.. Malonie acid Acetic acid Formic acid CH3CH2CH2-COOH (CH3)2CH-COOH (CH3)2CHCH2-COOH ii-Butycic acid lsobutyrtc acid [sovaleric acid OH CH2 saponins, the isolation of which is very difficult as a result o easy a, HOOC-CH2-COOH CH3-COOH H

11), has been established solanid-5-en-3j9-ol (Jadhav et al 198IX The saccharide portions of cei glycoalkaloids have been assigned trivial names. Thus, the trioside to a-solanine is p-solatriose and that in a-chaconine is frchacotriose. ). The first glycoside ('solanee*) of the solanidan group was isolated fror black nightshade Solanum nigrum by Desfosses in 1821. The presence > a compound similar to 'solanee* in the potato plant (5. tuberosum) wasj reported by Baup in 1826 and was named solanine.

Ginseng (Araliaceae) Tanaka and Kasai, 1984 Tanaka and Kasai, 1984 3-Glc2-Glc P. notogtnseng P. japonicus P. qtanquefoUus 748 Malonyl-ginsenoside Rc A 749 Ginscnosidc Rb, A 3-Gfe*-Glc*-Ma 20-G|c6-Ara/ ^Gk^CH 20-Glc6-Glc P. trifoUus P. ginseng (Araliaceae) P. ginseng (Araliaceae) P. notoginseng P. quinquefoHus P. pseudoginseng 750 Maionyl-ginsenoside Rb, P. 4Sk 2Q-Gk*-Xy\ Ginsenoside Raj 7S3 Ginsenoside Raa /\ 754 Ginsenoside Ra, a 755 Ginsenoside RA«, a 756 Chikusetsusaponin m A 3-GIc6-Xyl 757 Ginsenoside Rh, B 6-Glc 758 Ginsenoside Rg, B 20-Glc6-Ara/I-Xyl S-Glc'-Glc 20-Glc6-GIc3-Xyl J-GI^-GI^-Glc 6-Gic 20-Glc Tanaka and Kasai 1984 Tanaka and Kasai, 1984 Tanaka and Kasai, 1984 Tanaka and Kasai, 1984 (Araliaceae) 20-Glucoginsenoside Rf B 6-Gfc2-Glc 2(W3Ic 761 Pseudoginsenoside RC, B 762 Ginsenoside Rg, b S-GIc'-CHc'-Ac 20-Glc Tanaka and Kasai, 1984 Lee and dcr Marderosian, 1988 Tanaka and KauL 1984 P.

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