Strukturelle Abwandlungen an N-Acetylneuramins�ure. 22 [1]. Zur Umsetzung von Methyl-5-acetamido-7,8-anhydro-4-O-t-butyldimethylsilyl-3,5-didesoxy-D-glycero- und L-glycero-?-D-galakto-nonulopyranosidons�ure-methylester mit Bis-imidazolylthiocarbonat
In: Journal f�r Praktische Chemie, Jg. 333 (1991), S. 759-763
Online
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Zugriff:
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 Diimidazolylthiocarbonate The 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.
Titel: |
Strukturelle Abwandlungen an N-Acetylneuramins�ure. 22 [1]. Zur Umsetzung von Methyl-5-acetamido-7,8-anhydro-4-O-t-butyldimethylsilyl-3,5-didesoxy-D-glycero- und L-glycero-?-D-galakto-nonulopyranosidons�ure-methylester mit Bis-imidazolylthiocarbonat
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Autor/in / Beteiligte Person: | Zbiral, Erich ; Brandstetter, H. H. |
Link: | |
Zeitschrift: | Journal f�r Praktische Chemie, Jg. 333 (1991), S. 759-763 |
Veröffentlichung: | Wiley, 1991 |
Medientyp: | unknown |
ISSN: | 1521-3897 (print) ; 0021-8383 (print) |
DOI: | 10.1002/prac.19913330510 |
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