69515-91-9Relevant articles and documents
Unexpected incorporation of bromine at a non-anomeric position during the synthesis of an O2-glycosylated diazeniumdiolate
Saavedra, Joseph E.,Davies, Keith M.,Barchi, Joseph J.,Keefer, Larry K.
, p. 143 - 147 (2009)
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General Strategy for the Synthesis of Rare Sugars via Ru(II)-Catalyzed and Boron-Mediated Selective Epimerization of 1,2- trans-Diols to 1,2- cis-Diols
Li, Xiaolei,Tang, Weiping,Wu, Jicheng
supporting information, p. 3727 - 3736 (2022/03/02)
Human glycans are primarily composed of nine common sugar building blocks. On the other hand, several hundred monosaccharides have been discovered in bacteria and most of them are not readily available. The ability to access these rare sugars and the corresponding glycoconjugates can facilitate the studies of various fundamentally important biological processes in bacteria, including interactions between microbiota and the human host. Many rare sugars also exist in a variety of natural products and pharmaceutical reagents with significant biological activities. Although several methods have been developed for the synthesis of rare monosaccharides, most of them involve lengthy steps. Herein, we report an efficient and general strategy that can provide access to rare sugars from commercially available common monosaccharides via a one-step Ru(II)-catalyzed and boron-mediated selective epimerization of 1,2-trans-diols to 1,2-cis-diols. The formation of boronate esters drives the equilibrium toward 1,2-cis-diol products, which can be immediately used for further selective functionalization and glycosylation. The utility of this strategy was demonstrated by the efficient construction of glycoside skeletons in natural products or bioactive compounds.
Photolabile Protecting Group-Mediated Synthesis of 2-Deoxy-Glycosides
Li, Xiaoqian,Ma, Zhi,Liu, Rongkun,Hurevich, Mattan,Yang, You
supporting information, p. 3309 - 3314 (2021/10/14)
A green and efficient photolabile protecting group (PPG)-mediated glycosidation approach for the synthesis of 2-deoxy-glycosides is reported. By employing ortho-nitrobenzyl carbonate (oNBC) as PPG, N,N-dimethylformamide (DMF)-modulated SPhosAuNTf2/s
Substituted pyrazole compound, preparation method, pharmaceutical composition and applications thereof
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Paragraph 0331-0334, (2020/03/12)
The invention discloses a substituted pyrazole compound represented by a formula I, and a preparation method, a pharmaceutical composition and applications thereof, wherein the compound has characteristics of good stability, excellent solubility, low cytotoxicity and remarkable neuroprotective effect, can effectively prevent and treat nerve cell injury, and is an ideal medicinal compound for preventing or treating cerebral stroke, cerebral embolism, cerebral stroke sequelae, cerebral stroke dyskinesia, mitochondrial encephalomyopathy and amyotrophic lateral sclerosis of spinal cord.