## Abstract The 1,3,4,6‐tetra‐__O__‐acetyl‐2‐azido‐2‐deoxy‐__β__‐D‐mannopyranose (**4**) or the mixture of 1,3,6‐tri‐__O__‐acetyl‐2‐azido‐2‐deoxy‐4‐__O__‐(2,3,4,6‐tetra‐__O__‐acetyl‐__β__‐D‐galactopyranosyl)‐__β__‐D‐mannopyranose (**10**) and the corresponding __α__‐D‐glucopyranose‐type glycosyl do
The synthesis of anomeric 3-O-acetyl-5-O-benzoyl-2-azido-2-deoxy-D-arabinofuranosyl chlorides. Versatile sugar intermediates for the synthesis of 2′-azido-2′-deoxy- and 2′-amino-2′-deoxy-β-D-arabinofuranosyl nucleosides.
✍ Scribed by Miroslav Bobek; Vicki Martin
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- French
- Weight
- 226 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Considerable effort has been devoted over the years to the synthesis of amino nucleosides spurred on largely by the antibiotic properties exhibited by many of them. l-4 However, the synthesis of 2'-amino-2'-deoxy nucleosides which have the amino group in the "up" (arabino) configuration has proved rather elusive.
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Naturally occurring nucleosides, nucleoside antibiotics, and their analogues are compounds of increasing importance and interest as antitumor and antiviral agents. 3 In particular, araA (9-8-g-arabinofuranosyladenine, 1) exerts inhibi--4 tory activity against various tumor lines and against DNA vir
## Abstract The dinucleoside phosphate __Π__~d~p__Π__~d~ (**4**) was synthesized from the monomers 1‐(5′‐__O__‐monomethoxytrityl ‐ 2′ ‐ deoxy ‐ β ‐ D ‐ ribofuranosyl) ‐ 2 (1 __H__) ‐ pyridone ((MeOTr) __Π__~d~, **2**) and 1‐(5′‐__O__‐phosphoryl‐3′‐__O__‐acetyl‐2′‐deoxy‐β‐D‐ribofuranosyl)‐(1__H__)‐p
In the course of recent investigations '-4 in this series, we developed a oneflask synthesis of triacetalated, acyclic aldohexoses by use of 2,2-dialkoxypropanes or l,l-dialkoxycyclohexanes in the presence of p-toluenesulfonic acid. As shown in a preceding paper', one of the triacetals obtained from