76951-92-3Relevant articles and documents
Stereocontrolled Hydroxymethylation of Carbohydrate Imines: Formal Synthesis of Destomic Acid and Lincosamine
Delft, Floris L. van,Kort, Martin de,Marel, Gijs A. van der,Boom, Jacques H. van
, p. 2261 - 2264 (2007/10/02)
Addition of magnesium chloride to 6-benzylimino-6-deoxy-1,2;3,4-di-O-isopropylidene-α-D-galactopyranose mediated by Ce(III)Cl3 or CuI/BF3*Et2O proceeds with complete syn- or anti-diastereoselectivity, respectively, to afford h
SYNTHESIS OF DESTOMIC AND epi-DESTOMIC ACID, AND THEIR C-6 EPIMERS
Hashimoto, Hironobu,Asano, Katsuji,Fujii, Fumiko,Yoshimura, Juji
, p. 87 - 104 (2007/10/02)
Four stereoisomers of 6-amino-6-deoxyheptonic acid, having the L-glycero-D-galacto (1), D-glycero-D-galacto (2), L-glycero-D-gluco (3), and D-glycero-D-gluco(4) configurations, were synthesized from D-galacto- (8) and D-gluco-dialdose (23) derivatives, respectively.Cyanomesylation of 8 and 23 gave two C-6 epimers, respectively, which were separately converted, via the corresponding 6,7-epimino derivatives, into 6-(benzyloxycarbonyl)amino-6-deoxy derivatives by reduction with lithium aluminium hydride, N-(benzyloxycarbonyl)ation, and acetolysis with acetic acid.After deprotection of each hemiacetal, the stereoisomers were oxidized with bromine, followed by total deprotection, to give 1-4.Among these products, 1 and 3 proved to be identical with the naturally occuring destomic and epi-destomic acid obtained from antibiotic destomycins.
SYNTHESIS OF DESTOMIC ACID AND ITS 6-EPIMER
Hashimoto, Hironobu,Asano, Katsuji,Fujii, Fumiko,Yoshimura, Juji
, p. 1439 - 1440 (2007/10/02)
The structure of 6-aminoheptonic acid component contained in destomycin A and C was confirmed first by chemical synthesis.