87924-24-1Relevant articles and documents
SELECTIVE BROMOACETYLATION OF ALKYL HEXOPYRANOSIDES: A FACILE PREPARATION OF INTERMEDIATES FOR THE SYNTHESIS OF (1 -> 6)-LINKED OLIGOSACCHARIDES
Ziegler, Thomas,Kovac, Pavol,Glaudemans, Cornelis P.J.
, p. 185 - 198 (2007/10/02)
Bromoacetylation of methyl β-D-galacto- (1), α-D-galacto- (6), β-D-gluco- (18), α-D-gluco- (22), and α-D-manno-pyranoside (31), and benzyl β-D-gluco-pyranoside (27), gave the corresponding 6-O-bromoacetyl derivatives 2, 7, 19, 23, 32, and 28 in 50-60perce
SYNTHESES OF A BRANCHED HEPTASACCHARIDE HAVING PHYTOALEXIN-ELICITOR ACTIVITY
Fuegedi, Peter,Birberg, Winnie,Garegg, Per J.,Pilotti, Ake
, p. 297 - 312 (2007/10/02)
Synteses are described of a D-glucose heptasaccharide, 1, corresponding to a glucan structure recognised by the soybean when infected by the fungus Phytophtora megasperma f. sp. glycinea and which stimulates the formation of phytoalexins.The synthetic strategy is based upon 1,2-trans-glycoside formation assisted by participating benzoate groups in the 2-position, with silver triflate as promoter and glycosyl bromides as donors for making the smaller fragments, and with methyl triflate as promoter with thioglycosides as donors for making the larger ones.Regioselective reductive openings of 4,6 benzylidene acetals play a key role in obtaining free 6-OH groups with benzyl protection at O-4.
C-13 RELAXATION TIME GRADIENTS IN COMPLEXES OF LINEAR OLIGOSACCHARIDES AND CYCLODEXTRIN. A POTENTIAL NEW METHOD FOR SUGAR SEQUENCE DETERMINATION
Neszmelyi, A.,Liptak, A.,Nanasi, P.,Szejtli, J.
, p. 431 - 436 (2007/10/02)
A non-destructive method for sugar sequence determination is suggested using C-13 relaxation time gradients which are observable when the center of mass of the molecule is shifted by complexation with cyclodextrin.Quick and precise T1 measureme