107204-06-8Relevant articles and documents
Two new glycosides from Sanicula lamelligera
Zhou, Ling-Yun,Liu, Hai-Yang,Xie, Bai-Bo,Liu, Zhi-Hai,Chen, Chang-Xiang
, p. 607 - 610 (2006)
Two new glycosides, 21-O-β-D-glucopyranosyl-olean-12-ene-3β, 16α, 21β, 22α, 28-pentol-3-O-β-D-glucopyranosyl (1 → 2)-[β-D-arabinopyranosyl (1 → 3)]-β-D-glucopyranoside-(1) and 4-O-β-D-glucopyranosyl rosmarinic acid (3), along with the known compound rosmarinic acid (2) were isolated from the whole plants of Sanicula lamelligera Hance. Their structures were elucidated by spectroscopic analysis and chemical means.
Medicinal flowers. XXVI.1 structures of acylated oleanane-type triterpene oligoglycosides, yuchasaponins A, B, C, and D, from the flower buds of camellia oleifera-gastroprotective, aldose reductase inhibitory, and radical scavenging effects
Sugimoto, Sachiko,Chi, Guihua,Kato, Yasuyo,Nakamura, Seikou,Matsuda, Hisashi,Yoshikawa, Masayuki
, p. 269 - 275 (2009)
The methanolic extract and its 1-butanol-soluble fraction from the flower buds of Camellia oleifera Abel were found to exhibit inhibitory effects on ethanol- and indomethacin-induced gastric mucosal lesions in rats. The ethyl acetate- and 1-butanol-solubl
Antisweet natural products. X. Structures of sitakisosides I-V from Stephanotis lutchuensis Koidz. var. japonica
Yoshikawa,Taninaka,Kan,Arihara
, p. 2023 - 2027 (1994)
From the fresh stem of Stephanotis lutchuensis var. japonica, we have isolated five new oleane glycosides named sitakisosides I-V (1-5). Their structures were determined on the basis of spectroscopic data and chemical evidence. Sitakisoside V showed the strongest antisweet activity among sitakisosides I-V.
Antisweet natural products. XII. Structures of sitakisosides XI-XX from Stephanotis lutchuensis Koidz. var. japonica
Yoshikawa, Kazuko,Mizutani, Aki,Kan, Yukiko,Arihara, Shigenobu
, p. 62 - 67 (1997)
From the fresh stem of Stephanotis lutchuensis var. japonica, ten new oleanane-type triterpenoid glycosides, named sitakisosides XI-XX (1-10), were isolated. Their structures were determined on the basis of spectroscopic data and chemical evidence. The results show that all have a 3-O-β-D- xylopyranosyl(1→6)-β-D-glucopyranosyl(1→6)-β-D-glucopyranosyl moiety and the aglycones of sitakisosides XI-XV, XVI and XVII, XVIII and XIX, and XX are sitakisogenin, chichipegenin, marsglobiferin and longispinogenin, respectively, Sitakisosides XI-XIII, XVI and XVIII, having an acyl group, showed antisweet activity.
Nakano et al.
, p. 365,365,367,368 (1967)
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Barua,A.K. et al.
, p. 1113 - 1117 (1968)
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Ito et al.
, p. 3989 (1967)
PROCESS FOR THE PREPARATION OF PROTOESCIGENIN
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Paragraph 0174; 0175; 0176, (2013/07/31)
A process for the preparation of protoescigenin by hydrolysis of escin isolated from Aesculus hippocastanum. The process includes the following steps: a two-step hydrolysis first under acidic and then basic conditions, enrichment of the crude mixture of sapogenins with protoescigenin, an isolation of the mixture of sapogenins in a solid form, and a purification of the obtained solid and isolation of high purity protoescigenin. The invention also relates to protoescigenin monohydrate in a crystalline form and the preparation thereof. Protoescigenin is a polyhydroxy aglycone, which can be used as a synthon in the chemical modifications of naturally occurring saponins.
Medicinal flowers. XXXVI.1) Acylated oleanane-type triterpene saponins with inhibitory effects on melanogenesis from the flower buds of Chinese Camellia japonica
Nakamura, Seikou,Fujimoto, Katsuyoshi,Nakashima, Souichi,Matsumoto, Takahiro,Miura, Tomoko,Uno, Kaoru,Matsuda, Hisashi,Yoshikawa, Masayuki
experimental part, p. 752 - 758 (2012/09/25)
Four acylated oleanane-type triterpene oligoglycosides, sanchakasaponins E-H, were isolated from the flower buds of Camellia japonica cultivated in Yunnan province, China, together with four known triterpene oligoglycosides. The chemical structures of the new triterpene oligoglycosides were elucidated on the basis of chemical and physicochemical evidence. The inhibitory effects of the triterpene oligoglycoside constituents on melanogenesis in theophylline-stimulated B16 melanoma 4A5 cells were investigated.
