R. J. Ferrier's Carbohydrate Chemistry v.25 PDF

By R. J. Ferrier

ISBN-10: 0851866921

ISBN-13: 9780851866925

Carbohydrate Chemistry offers assessment assurance of all courses appropriate to the chemistry of monosaccharides and oligosaccharides in a given yr. the quantity of analysis during this box showing within the natural chemical literature is expanding end result of the improved significance of the topic, specifically in components of medicinal chemistry and biology. In no a part of the sphere is that this extra obvious than within the synthesis of oligosaccharides required through scientists operating in glycobiology. Clycomedicinal chemistry and its reliance on carbohydrate synthesis is now rather well tested, for instance, by means of the education of particular carbohydrate- established antigens, particularly cancer-specific oligosaccharides and glycoconjugates. assurance of subject matters reminiscent of nucleosides, amino-sugars, alditols and cyclitols additionally covers a lot learn of relevance to organic and medicinal chemistry. every one quantity of the sequence brings jointly references to all released paintings in given parts of the topic and serves as a finished database for the energetic learn chemist. expert Periodical reviews supply systematic and exact evaluate assurance in significant parts of chemical study. Compiled through groups of prime professionals within the proper topic parts, the sequence creates a distinct carrier for the energetic study chemist, with common, in-depth bills of development particularly fields of chemistry. topic insurance inside varied volumes of a given name is identical and booklet is on an annual or biennial foundation.

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115. 232 685). N. Greenspoon, and E. Wachtel, J. Am. Chem. , 1991,113,7233. R. Ostaszewski, U. Jacobson. and J. Jmzak. Bull. Pol. Acud. 347 (Chem. Absfr.. 1991. 114, 6472). K. Tanaka, T. Takeda. and K. Phurm. , 1991,39. 1091. ' The same group have reported on the synthesis and use of 1-0-pent-4-enoylglycosesin glycosidations. ' Mukaiyama's group have shown that use of 1-0-acetyl-2,3,4,6-tetra-O-benzyl-D-glucose and trimethylsilylated alcohols in the presence of Lewis acid catalysts leads to high yields of glycosides with remarkably high a$ ratios (9:l or better).

In the area of deoxy-sugar disaccharides L-rhamnose compounds have been given 2-0-methyl-3-0-(a-L-rhamnosyl)considerable attention, 2-O-a-L-rhamno~yl-L-rharnnose,'~~ L-rharnnose,la and 3-0-a-L-rhamnosyl-D-glucuronic acid'49 having been prepared. The 1,2-thio-orthoester (99) has been used to give rhamnosylated 1,6-linked disaccharides either directly or via exchanged orthoesters which underwent rearrangement. mr. lS2 S- Ethyl 2-0-methyl-&L-fucoside derivatives, activated with iodonium dicollidene perchlorate, were used to give a-linked disaccharides.

133 Several sulfates of lactose are referred to in Chapter 7. The amino-disaccharide (86) was made by a displacement of a triflyloxy group from a derivative of the corresponding galactosyl glucosamine,” and the lactose based 2-oximinoglycosyl chloride (87) has been used as the starting material to produce 0-linked serine glycosides with the u-gluco- and p-rnanno- configurations and the 2-acetamido-2-deoxy analogues. '39 Compound (92) was made by a glycosylation involving a 6-0-octylglycosylbromide and a C-ally1 galactoside derivative, followed by reductive ozonolysis of the ally1 group.

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Carbohydrate Chemistry v.25 by R. J. Ferrier

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