3-O-β-D-glucopyranosyl-(1→3)-α-L-arabinopyranosyl-ilexgenin B 在
盐酸 作用下,
以
水 为溶剂,
反应 3.0h,
生成 ilexgenin B
参考文献:
名称:
Triterpenoid saponins from Ilex mamillata C.Y. Wu ex C.J. Tseng
摘要:
Two new triterpenoid saponins, ilemaminosides A and B (1 and 2) along with six known saponins (3-8) were isolated from 70% ethanolic extract of the leaves of Ilex mamillata C.Y. Wu ex C.J. Tseng. The new saponins were characterised as 3-O-alpha-L-arabinopyranosyl-ilexgenin B (1) and 3-O-beta-D-glucopyranosyl-(1 -> 3)-alpha-L-arabinopyranosyl-ilexgenin B (2). The structures of compounds 1 and 2 were elucidated on the basis of the chemical and spectroscopic methods, and the structures of known compounds were identified by comparison of their spectroscopic data with those reported in the literature. The compounds showed inhibitory activities in anti-inflammatory assay in vitro with IC50 values in the range 25.37-38.33 mu gmL(-1).
Five newtriterpenoidsaponins latifolosides A-E were isolated from the leaves of Ilex latifolia, along with a known compound. Their chemical structures have been elucidated on the basis of the chemical and spectral methods. (C) 1997 Elsevier Science Ltd. All rights reserved.
作者:Ming-An Ouyang、Yu-Qing Liu、Han-Qing Wang、Chong-Ren Yang
DOI:10.1016/s0031-9422(98)00164-2
日期:1998.12
Three newtriterpenoidsaponins, latifolosides F, G, H were isolated from the leaves of Ilex latifolia. Their structures were elucidated on the basis of chemical and spectral evidence. Latifoloside F was determined to be 3-O-[alpha-L-rhamnopyranosyl(1-2)]-[beta-D-glucopyranosyl(1-3)-]- alpha-L-arabinopyranosyl ilexgenin B 28-O-[alpha-L-rhamnopyranosyl(1-2)]-beta-D-glucopyranoside. Latifoloside G was
从阔叶冬青的叶子中分离出三种新的三萜皂苷,阔叶苷F、G、H。根据化学和光谱证据阐明了它们的结构。Latifoloside F 被确定为 3-O-[α-L-吡喃鼠李糖基 (1-2)]-[β-D-吡喃葡萄糖基 (1-3)-]-α-L-阿拉伯吡喃糖苷 B 28-O-[α -L-吡喃鼠李糖基(1-2)]-β-D-吡喃葡萄糖苷。Latifoloside G 是 3-O-[α-L-吡喃鼠李糖基(1-2)]-[β-D-吡喃葡萄糖基(1-3)-]-α-L-阿拉伯吡喃梨糖苷酸28-O-[α-L-鼠李糖基(1-2)]-β-D-吡喃葡萄糖苷。Latifolioside H(3) 是 3-O-[α-L-吡喃鼠李糖基(1-2)]-[β-D-吡喃葡萄糖基(1-3)-]-α-L-阿拉伯吡喃糖基siaresinolic acid 28-O-[alpha -L-吡喃鼠李糖基(1-2)]-β-D-吡喃葡萄糖苷。
Ursane-type triterpene oligoglycosides with anti-hepatosteatosis and anti-hyperlipidemic activity from the leaves of Ilex paraguariensis A. St.-Hil.
The methanol extract from the leaves of Ilex paraguariensis A. St.-Hil. (Aquifoliaceae), popularly known as mate, maté, or yerba maté, inhibits the intracellular triglyceride accumulation in HepG2 cells and suppresses the plasma triglyceride elevation in olive oil-treated mice. Three new triterpene saponins, termed mateosides I (1), II (2), and III (3), were isolated from the extract along with 29
Polynucleotide binding complexes comprising sterols and saponin
申请人:Nordic Vaccine Technology A/S
公开号:EP2011517A1
公开(公告)日:2009-01-07
The present invention pertains to complexes comprising sterols and saponins. The complexes are capable of binding a genetic determinant including a polynucleotide. The complexes may further comprise a lipophilic moiety, optionally a lipophilic moiety comprising a contacting group and/or a targeting ligand, and/or a saccharide moiety. The complexes may further comprise an immunogenic determinant and/or an antigenic determinant and/or a medicament and/or a diagnostic compound. The complexes may in even further embodiments be encapsulated by an encapsulation agent including a biodegradable microsphere. The present invention also pertains to pharmaceutical compositions and methods of treatment of an individual by therapy and/or surgery, methods of cosmetic treatment, and diagnostic methods practised on the human or animal body.
Triterpene Saponins from the Aerial Parts of Ilex cornuta and Their Cytotoxic Activity
作者:Kang Ro Lee、Seung Young Lee、Won Se Suh、Ho Kyung Kim、Il Kyun Lee、Sang Un Choi、Ki Hyun Kim
DOI:10.3987/com-15-13175
日期:——
Four new triterpene saponins (1-4), together with 13 known triterpenoids (5-17), were isolated from the MeOH extract of flex cornuta Lindley (Aquifoliaceae). Their structures were elucidated on the basis of chemical and spectroscopic methods. The isolated compounds were tested for their cytotoxicities against four human tumor cell lines. (A549, SK-OV-3, SK-MEL-2, and HCT15) in vitro using the sulforhodamine B (SRB) assay.