2-Deoxy-P-D-lyxo-hexose (2-deoxy+-D-galactose, C,H,,O,), M, = 164.16, is monoclinic, P2, with a = 9.811(l), b = 6.953(l), c = 5.315(l) A, p = 91.58(2)", V = 362.5(l) A3, Z = 2, and D, = 1.504 g.cme3. The structure was solved by direct methods (MULTAN 79) and refined to R = 0.032 for 800 observed ref
Preparation of 2-deoxy-β-d-lyxo-hexosides (2-deoxy-β-d-galactosides)
✍ Scribed by David Crich; Timothy J. Ritchie
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 211 KB
- Volume
- 190
- Category
- Article
- ISSN
- 0008-6215
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✦ Synopsis
With a view to the eventual synthesis of the trisaccharide chain of the antitumor antibiotic olivomycin A1 (1)) we have studied the preparation2 of heptulosonic acid 0-glycosides and their stereoselective radical decarboxylation3 to 2-deoxy-EDarubino-hexosides (2deoxy-/3-D-glucosides). We now report the preparation of 2deoxy-/3-D-lyxo-hexosides (2-deoxy+?-D-galactosides), relevant to the disaccharide chain of olivomycin A, and improvements in the synthesis of heptulosonic acids.
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## Isfituto per la Chimica di Mofecofe o'i Wexsse Bi5iogic5 del C. N. R., viu T&am 6, E10072 Arm Fe f f ce, Napo fi (If a/y
## Abstract Complete analyses of the ^1^H n.m.r. spectra at 300 MHz of D~2~0 solutions of 2‐deoxy‐D‐arabino‐hexopyranose, 2‐deoxy‐D‐lyxo‐hexopyranose and 2′‐deoxy lactose. Chemical shifts in the deoxy monosaccharides and in 2′‐deoxy lactose are compared with those previously obtained in the parent