The sulfation of dermatan sulfate by SO3-trimethylamine in N,N-dimethylformamide led to substitution initially at HO-6 of residues of 2-acetamido-2-deoxy-beta-D-galactopyranosyl 4-sulfate (1), to produce the 4,6-disulfate (6). When this step reached a level of greater than 50%, sulfation occurred wi
The conformation of methyl 4,6-O-(S)-benzylidene-2-chloro-2-deoxy-α-D-idopyranoside in the crystalline state and in chloroform solution
✍ Scribed by L. Neville Chamberlain; Ian A.S. Edwards; Hans P. Stadler; J. Grant Buchanan; Anthony Thomas
- Book ID
- 108308776
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 430 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0008-6215
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As part of a programme involving X-ray crystallographic studies" of cis-and tpuns-fused hexopyranosides, we now report on the crystal structures of methyl 2-~-methyl-~-D-glucop~anoside\* (11, which was obtained by debe~lidenation of methyl 4,~-O-benzyIidene-2-O-methyI-3-O-~-tolylsulfonyl-~-~-glucopy
The conformational difference of the title compound (1) in the solid state and in solution has been investigated by X-ray crystallography and high-field proton n.m.r. spectrometry. In the solid state, compound 1 adopts the "c,(D) conformation (la), whereas 1 exists preferentially in the 'C4(D) confo