Conformational studies of N-acetyl-N-methyl-l-alanine dimethylamide-d6 by n.m.r. spectroscopy
โ Scribed by Yukio Imanishi; Kazuya Kugimiya; Toshinobu Higashimura
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 410 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
Debenzoylation of 2,4,6-tri-O-benzoyl-3-deoxy-D-arabino-hexono-l,S-lactone (1) followed by heating in vacua and rebenzoylation afforded 2,5,6-tri-o-benzoyl-3-deoxy-D-arubino-hexono-1,Clactone (2). Reduction of 2 with disiamylborane gave 2,5,6-tri-O-benzoyl-3-deoxy-D-arabino-hexofuranose (3) a conven
The structure of the methylated derivative (1) of the tetrasaccharide-alditol-O-beta-L-rhamnopyranosyl-(1----3)-O-beta-D- xylopyranosyl-(1----4)-O-beta-L-rhamnopyranosyl-(1----2)-1,5-di-O-acetyl -L- arabinitol has been determined solely on the basis of n.m.r. data.
On the basis of the finding that N- is the minimal, adjuvant-active structure'\*3 capable of re-