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Acetylenic nucleosides. 1. Synthesis of 1-(5,6-Dideoxy-.beta.-D-ribo-hex-5-ynofuranosyl)uracil and 1-(2,5,6-trideoxy-.beta.-D-erythro-hex-5-ynofuranosyl)-5-methyluracil

✍ Scribed by Sharma, Ram A.; Bobek, Miroslav


Book ID
126029693
Publisher
American Chemical Society
Year
1978
Tongue
English
Weight
413 KB
Volume
43
Category
Article
ISSN
0022-3263

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Regioselective synthesis of C-nucleoside
✍ Usama A. R. Al-Timari; Δ½ubor FiΕ‘era πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 557 KB

The synthesis of 3-aryl-5-( 1,2-O-isopropylidene-a-D-xylo-tetrofuranos-4-yl)-2-isox~oline (3) from arylnitrile oxides and 5,6-dideoxy-l,2-O-isopropylidene-a-D-xylo-hex-S-enofuranose (1) is described. The I ,3-dipolar cycloaddition reactions give mainly anti-adducts (3 95% n-facial stereoselectivity)