862108-13-2Relevant articles and documents
Practical synthesis of a tetrasaccharide derivative corresponding to ristomycin A and ristocetin A
Zhang, Meimei,Du, Yuguo,Kong, Fanzuo
, p. 319 - 324 (2001)
A practical synthesis of fully benzoylated tetrasaccharide, whose free form is indispensable to the antibiotic ristomycin A for the process of dimerization and binding to the cell wall, was achieved via sequential assembly of the building blocks, allyl 3,4-di-O-benzoyl-α-D-glucopyranoside, 2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl trichloroacetimidate, 2-O-acetyl-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl trichloroacetimidate, and 2,3,5-tri-O-benzoyl-α-D-arabinofuranosyl trichloroacetimidate. A one-pot preparation of allyl 3,4-di-O-benzoyl-2-O-tert-butyldimethylsilyl-6-O-triphenylmethyl-α-D- glucopyranoside is described, and regioselective glycosylation is carried out using perbenzoylated sugar trichloroacetimidates as glycosyl donors in the presence of a catalytic amount of trimethylsilyl trifluoromethanesulfonate (TMSOTf).
6R-(3,6-DIDEOXY-L-ARABINO-HEXOPYRANOSYLOXY)HEPTANOIC ACID, PREPARATION PROCESS FOR THE SAME AND DAUER EFFECT THEREOF
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Page/Page column 5; 10-11, (2008/06/13)
The present invention relates to a determination of a stereochemistry, a synthesis and dauer effect of 6R-(3,6-dideoxy-L-arabino-hexopyranosyloxy) heptanoic acid as a pheromone isolated from the Caenorhabditis elegance related to suppress of aging and