Titlebook: Carbohydrate-spiro-heterocycles; László Somsák Book 2019 Springer Nature Switzerland AG 2019 Spiro-annulated carbohydrate.Cycloaddition re

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Cycloaddition Reactions of Sugar-Based Olefins, Nitrones and Nitrile Oxides: En Route to Saccharidiycles can be obtained by 1,3-dipolar cycloaddition reactions between an olefin and a nitrile oxide or a nitrone. This reaction generates one C–C and one C–O bond and up to three chiral centres in one step. In the present chapter, we aim to summarize and discuss reports of these cycloadditions on sug

能量守恒

Carbohydrate Spiro-heterocycles via Radical Chemistry, radical chemistry. A variety of heterospiro[...]alkane bicyclic structures (. = 3–5, . = 4–6) possessing one, two, or three heteroatoms (N, O, Si, S) have been collected, in addition to three different 1,6,8-trioxadispiro-tetradecane and 1,6,8-trioxadispiro-pentadecane tricyclic systems. C(sp.)–H b

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Recent Advances in the Chemistry and Biology of Spirocyclic Nucleosides,t to light in the ability of drug researchers to draw on an understanding of the biochemistry of naturally occurring nucleosides and to build up synthetic nucleoside analogues, which belong to the most important class of antiviral drugs and are extensively used as anticancer agents and in the treatm

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Spiroketal Phthalane ,-Glycosides: Synthesis of Papulacandins and SGLT2 Inhibitors,l phthalane .-glycosides, in which a phthalane ring and sugar unit form a spiroketal framework, have garnered enormous attention from wide research areas because such a fascinating spirocycle motif is found in antibiotic natural products, i.e., papulacandins and their relatives. Moreover, recent rep

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Spiro Iminosugars: Structural Diversity and Synthetic Strategies,ow attracts the interest of members of the whole synthetic organic chemistry community. Indeed, many tasks concern structural modifications of standard iminosugars in order to improve their biological and pharmacological properties. In this way, the introduction of an adjoining .cycle afforded unpre

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Ethlinn V.B. van Gaal,Daan J.A. Crommelinnomeric configuration and also to yields in industrial syntheses or biological activities of the molecules. A specific attention is devoted to tofogliflozin and glycogen phosphorylase inhibitors both used as antihyperglycemic drugs and drug candidates, respectively.

愤世嫉俗者

Daan J.A. Crommelin,Jon S. B. de Vliegerucleoside analogues, mimics of natural building blocks or multicyclic sugar scaffolds suitable for selective derivatization. Some of them thus showed promising biological properties as antibacterial agents or enzyme inhibitors. Moreover, the labile nature of the N–O bond in the isoxazolidine ring ma

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Non-Hermitian Open Chain and Periodic Chain,of hydantocidin prompted considerable synthetic interest in this nucleoside and also in a variety of analogues. The present overview describes the convenient approaches that have been developed in the past two decades for accessing varied members of the family of spiro-functionalized nucleosides.