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Two new triterpenoid saponins from ginseng medicinal fungal substance. 2016

Wei Xu, and Jin-Hui Zhang, and Xin-Wen Wang, and Xiao-Li Liu, and Xin Liu, and Zhi-Dong Qiu
a College of Pharmacy, Changchun University of Chinese Medicine , Changchun 130117 , China.

Two new dammarane-type triterpenoid saponins, namely ginsenosides Rb4 (1) and Rb5 (2), were isolated from ginseng medicinal fungal substance. The structures of 1 and 2 were established as 3β,12β,20(S)-trihydroxydammar-24(25)-ene-3-O-[α-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl-(1→2)-β-d-glucopyranosyl]-20-O-β-d-glucopyranoside and 3β,12β,20(S)-trihydroxydammar-24(25)-ene-3-O-[α-d-glucopyranosyl-(1→4)-α-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl-(1→2)-β-d-glucopyranosyl]-20-O-β-d-glucopyranoside on the basis of spectroscopic analysis and chemical analysis, respectively.

UI MeSH Term Description Entries
D005894 Panax An araliaceous genus of plants that contains a number of pharmacologically active agents used as stimulants, sedatives, and tonics, especially in traditional medicine. Sometimes confused with Siberian ginseng (ELEUTHEROCOCCUS). Ginseng,Korean Ginseng,Korean Red Ginseng,Panax ginseng,Jen Shen,Ninjin,Renshen,Schinseng,Shinseng,Ginseng, Korean,Ginseng, Korean Red,Ginsengs,Jen Shens,Korean Ginsengs,Korean Red Ginsengs,Ninjins,Red Ginseng, Korean,Renshens,Schinsengs,Shen, Jen,Shinsengs
D000097669 Dammaranes Tetracyclic triterpenes named after dammar resin, a natural resin first isolated from tropical trees of the DIPTEROCARPACEAE family. Dammarane,Dammarane-Type Triterpenes,Triterpenes, Dammarane-Type
D012503 Saponins A type of glycoside widely distributed in plants. Each consists of a sapogenin as the aglycone moiety, and a sugar. The sapogenin may be a steroid or a triterpene and the sugar may be glucose, galactose, a pentose, or a methylpentose. Saponin
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D014315 Triterpenes A class of terpenes (the general formula C30H48) formed by the condensation of six isoprene units, equivalent to three terpene units. Triterpene,Triterpenoid,Triterpenoids
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D018517 Plant Roots The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990) Plant Bulbs,Plant Root,Bulb, Plant,Bulbs, Plant,Plant Bulb,Root, Plant,Roots, Plant
D027343 Rhizome Root-like underground horizontal stem of plants that produces shoots above and roots below. Distinguished from true roots which don't have buds and nodes. Similar to true roots in being underground and thickened by storage deposits. Rhizomes
D036145 Ginsenosides Dammarane type triterpene saponins based mainly on the aglycones, protopanaxadiol and protopanaxatriol. Ginsenoside,Panaxosides,Sanchinosides

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