ISSN:
0021-8383
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Structural Variations on N-Acetylneuraminic Acid. 22 On the Reaction of Methyl[5-Acetamido-7,8-anhydro-4-O-t-butyldimethylsilyl-3, 5-dideoxy-D-glycero-and-L-glycero-β-galacto-2-nonulopyranosid]onate with DiimidazolylthiocarbonateThe title compounds 1 and 3 are transformed with diimidazolylthiocarbonate into the cyclic 8(S),9(O)-dithiocarbonatosialic acid derivatives 2 and 4 as well as into a mixture of the cyclic 8(S),9(O)-monothiocarbonato derivatives 5a and 5b, which turned with acetanhydride pyridine to the corresponding 4-O-t-butyldimethylsilyl-7-O-acetyl- and 4,7-di-O-acetyl derivatives 5c and 5d.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/prac.19913330510
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