Natural Occurring C-Glycosides

Considering the number of naturally occurring C-glycosides known, we cannot ignore the specific class of C-nucleosides. This class of compounds is particularly important due to the antibacterial, antiviral, and antitumor properties of many of these molecules. Some examples of naturally occurring C-nucleosides are shown in Figure 1.3.6 and include pyrazofurin, showdomycin, oxazinomycin, formycin, and formycin B.17>18... 

Naturally Occurring C-Glycosylflavonoids O-Glycosides. (Hypothetic Structures Previously Mentioned in the Last Edition Have Been Removed If Not Confirmed in Their True Structure the New Compounds for the Period 1992 to 2004 Are Indicated by an Asterisk [ ])... 

Reviews (a) M. H. D. Poslema, Recent developments in the synthesis of C-glycosides, Tetrahedron 48 8545 (1992) (b) S. Hanessian and A. G. Pemet, Synthesis of naturally occurring C nucleosides, their analogs, and functionalized C-glycosyl precursors, Adv. Chem. Biochem. 33 111 (1976). 

Carakostas, M.C., L.L. Curry, A.C. Boileau, and D.J. Brusick. 2008. Overview The history, technical function and safety of rebaudioside A, a naturally occurring steviol glycoside, for use in food and beverages. Food Chem. Foxicol. 46(Suppl. 7) S1-S10. 

This protocol for site-selective acylation was applied to diversification of naturally occurring cardiac glycoside, lanatoside C 80, possessing eight free hydro)yl groups. Various acyl groups were introduced at the C(4"")-alcohol... 

Scheme 22.18 Site-selective diversification of naturally occurring cardiac glycoside, lanatoside C.

Fig. 11 Naturally occurring cardiac glycosides, digitoxin and lanatoside C...

Glycosides Isolated from Natural Sources.- The third report of a naturally occurring C-galactoside-8-C-galactopyranosylaplgenln... 

Naturally occurring C-nucleosides and the synthesis of analogous C-nucleosides and functionalized C-glycosides have been reviewed. ... 

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