149707-75-5Relevant academic research and scientific papers
VACCINE COMPOSITIONS AND ANTIBODIES FOR LYME DISEASE
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, (2022/03/02)
The present invention relates to vaccine compositions comprising lipid antigens, antibodies targeting lipid antigens, pharmaceutical compositions comprising such and their use in diagnosing, monitoring, treating, and preventing infectious disease, such as Lyme disease. In one aspect, administered is a therapeutically effective amount of a vaccine composition comprising a lipid antigen, an antibody or fragment thereof binding a lipid antigen, and/or a pharmaceutical composition comprising an antibody or fragment thereof binding a lipid antigen. Other aspects are described.
Carbon tetrachloride-free allylic halogenation-mediated glycosylations of allyl glycosides
Das, Anupama,Jayaraman, Narayanaswamy
, p. 9318 - 9325 (2021/11/13)
The allylic bromination of allyl glycosides is conducted using NBS/AIBN reagents in (EtO)2CO and PhCF3 solutions, without using CCl4 as a solvent. The activated mixed halo-allyl glycosides led to glycosylations, mediated by a triflate, in a latent-active
Delta-oleanolic acid saponin compound and medical application thereof
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, (2020/12/31)
The invention discloses a delta-oleanolic acid saponin compound and medical application thereof. The delta-oleanolic acid saponin compound is a compound with a structural formula shown as a formula (I), and pharmaceutically acceptable salt or ester or pro
Experimental and theoretical study of the O3/O4 regioselectivity of glycosylation reactions of glucopyranosyl acceptors
Del Vigo, Enrique A.,Stortz, Carlos A.,Marino, Carla
, (2020/11/10)
The knowledge of the regioselectivity between different hydroxyl groups of glycosyl acceptors is valuable in planning simple strategies for the synthesis of oligosaccharides, minimizing the use of protecting groups. With the aim of obtaining deeper knowle
Lewis acid promoted anomerisation of alkyl O- and S-xylo-, arabino- and fucopyranosides
Doyle, Lisa M.,Meany, Fiach B.,Murphy, Paul V.
, p. 85 - 94 (2018/12/05)
Pentopyranoside and 6-deoxyhexopyranosides, such as those from D-xylose, L-arabinose and L-fucose are components of natural products, oligosaccharides or polysaccharides. Lewis acid promoted anomerisation of some of their alkyl O- and S-glycopyranosides i
Aralia saponin derivative as well as preparation method and application thereof (by machine translation)
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Paragraph 0095-0098; 0105; 0106, (2019/08/20)
The invention discloses an Aralia saponin derivative as well as a preparation method and application, thereof. A structure represented by the general formula (I). To the invention, oleanolic acid and four sugar, coffee acid or 3 - methoxy 4 - hydroxycinna
Aralia elata seem monomer saponin derivative and preparation method and use thereof
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Paragraph 0107-0110; 0117; 0118, (2019/08/30)
The invention discloses an aralia elata seem monomer saponin derivative and a preparation method and use thereof. The derivative has a structure represented by a general formula (I). Oleanolic acid orursolic acid, five kinds of sugars and caffeic acid are
Ionic liquid-assisted catalysis for glycosidation of two triterpenoid sapogenins
Zhang, Tenghe,Li, Xinlu,Song, Hang,Yao, Shun
, p. 16881 - 16888 (2019/11/14)
In order to both investigate the universality of ionic liquid-based catalytic systems for synthesis of triterpene saponins and explore their effective application methods together with the catalytic behaviors of ionic liquids in related reactions by comparison between different initiators, oleanolic acid and ursolic acid were selected to establish a catalytic system for glycosylation in this study as typical representatives of pentacyclic triterpene sapogenins. As a result, it was found that the system of [C4mim][OTf] + TMSOTf in the reactions between the glycosyl receptors and donors showed obvious catalytic effects; also, the system was stable and could be recycled. The functions of IL include solvent, cocatalyst and stabilizer, simultaneously; thus, the current catalytic system is greener, simpler and more efficient. The reaction time was short, and only β-type products were obtained. This study offers a reference for developing a new glucoside synthesis technology and provides sufficient preliminary exploration and basic data for further large-scale applications.
The dehydroepiandrosterone and dehydroepiandrosterone alkone glycosylation derivative and its preparation method and application
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Paragraph 0041; 0050, (2017/04/28)
The invention discloses epiandrosterone glycosylation derivatives and dehydrogenated epiandrosterone glycosylation derivatives, and a preparation method thereof. The preparation method comprises the following steps: respectively carrying out coupling reac
3 - monosaccharide acid oxygen glucoside oleanolic alkane type and wusu alkane triterpene saponin derivative and its preparation method and application
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Paragraph 0035; 0039, (2017/08/25)
The invention discloses a 3-monouronic acid o-glycoside oleanane type and ursane type triterpenoid saponin derivative. The derivative has a structural formula as shown in the specification, wherein R4 is one of H atom, alkyl containing 1-10 carbons, alkyl
