G.l.c.-m.s. of methylated derivatives of 3-deoxy-2-ketoaldonic acid phosphates
β Scribed by Helmut Brade; Hermann Moll; Simon R. Sarfati; Daniel Charon
- Book ID
- 107725668
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 258 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0008-6215
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The identification of the peracetylated methyl glycosides of 3-deoxy-o-
Methylated or acetylated heptopyranose derivatives were prepared variously from L-glycero-D-manno- and D-glycero-D-manno-heptopyranose, O-L- glycero-alpha-D-manno-heptopyranosyl-(1----3)-L-glycero-D-manno- heptopyranose, O-L-glycero-alpha-D-manno-heptopyranosyl-(1----7)-L-glycero- D-manno-heptopyran
Acylation of ammonium 3-deoxy-n-D-manno-Z-octulopyranosonate (la) leads to the formation of peracetylated 3-deoxy-a-D-manno-2-octulopyranosono-1,5-lactones (3a,b). The proposed structures were confirmed by independent syntheses. The 1,7-lactone was not formed even when only OH-7 was available for la