196608-06-7Relevant articles and documents
Antioxidant and semicarbazide-sensitive amine oxidase inhibitory activities of glucuronic acid hydroxamate
Liu, Yuh-Hwa,Liang, Wen-Li,Lee, Chi-Ching,Tsai, Yow-Fu,Hou, Wen-Chi
experimental part, p. 423 - 428 (2012/04/10)
The antioxidant and inhibitory activities of glucuronic acid (GluA) and its synthesized 1-methoxyl-6-glucuronic acid hydroxamate (GluA-NHOH) against semicarbazide-sensitive amine oxidase (SSAO) were investigated. The scavenging activities of GluA-NHOH aga
Studies on the Constituents of Solanaceous Plants. XIII. A New Steroidal Glucuronide from Chinese Solanum lyratum
Yahara, Shoji,Ohtsuka, Michiko (nee Ikeda),Nakano, Kimiko,Nohara, Toshihiro
, p. 1802 - 1804 (2007/10/02)
A new glucuronide, (22R)-3β,16β,22,26-tetrahydroxycholest-5-ene 3-O-α-L-rhamnopyranosyl-(1->2)-β-D-glucuronopyranoside (1), was isolated from the aerial parts of Chinese Solanum lyratum THUNB.The structure of this new steroidal glucuronide was deduced by spectroscopic means and the identity of its aglycone was substantiated by comparison with an authentic sample derived from diosgenin acetate.Keywords - Solanaceae; Solanum lyratum; (22R)-3β,16β,22,26-tetrahydroxycholest-5-ene; rhamnosyl glucuronoside; diosgenin E,F-ring cleavage; aluminum chloride-acetic anhydride reaction.
A New Cleavage Method for the Sugar-Aglycone Linkage in Saponin
Higuchi, Ryuichi,Tokimitsu, Yoshinori,Hamada, Naoko,Komori, Tetsuya,Kawasaki, Toshio
, p. 1192 - 1201 (2007/10/02)
A new cleavage method for the sugar-aglycone linkage in saponin is described.Treatment of 2)-O-α-L-arabinopyranosyl-(1->3)-β-D-glucopyranosid>uronic acid (1) with diazomethane-ether in methanol gave the aglycone 2 and the sugars 3 and 4.On the basis of chemical and spectral evidence they were determined as methyl 3β,23α-dihydroxy-3-O,23-methylenolean-12-en-28-oate (2), methyl 2)-O-α-L-arabinopyranosyl-(1->3)-α-D-glucopyranosid>uronate (3), and methyl O-β-D-galactopyranosyl-(1->2)-O-α-L-arabinopyranosyl-(1->3)-1,4-anhydro-α-D-glucopyranuronate (4).This method is useful for structure determination of some oleanane triterpenoid saponins and for yielding new oligosaccharides.The cleavage of the quillaic acid 3-O-glycoside 10 is also discussed.