Enantioselective synthesis of several 1-O-β-D-glucoconjugates using almond β-glucosidase (E.C. 3.2.1.21)
✍ Scribed by L. Fischer; R. Bromann; F. Wagner
- Publisher
- Springer Netherlands
- Year
- 1995
- Tongue
- English
- Weight
- 298 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0141-5492
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✦ Synopsis
The almond 13-glucosidase catalysed syntheses of 4-butanoic acid-N-butylamide-l-O-I~-D-glucopyranoside (1), 3-butanoic acid ethyl ester-l-O-l~-D-glucopyranoside (2)and 2-(trimethylsilyl)-ethyl-l-O-I~-D-glucopyranoside (3) were done by reversed hydrolysis and by transglucosylation. The transglucosylation was much faster and resulted in higher relative yields (9.6 to 44.9%) than the reversed hydrolysis (relative yields of 1.2 to 19.1%).
📜 SIMILAR VOLUMES
5-Dcoxy-J,2-O-isopropylidene-S-C-(methoxyphenylphosphinyl)-~-O-~~thyl-n-D-ribofuranose (4) was prepared from 1,2-0-isopropylidene-3-O-methyl-a-D-ribo-pentodialdo-1,4-furanose by an addition reaction with methyl phenylphosphinate, followed by deoxygenation of the terminal HO-$H-P group of the adduct
## Abstract Three trisaccharide derivatives of the type β‐D‐Hex__p__‐(1 → 4)‐β‐D‐Glc__p__NAc(1 → 2)‐α‐D‐Man__p__‐(1 → O)(CH~2~)~7~CH~3~ have been synthesized, with Hex being either glucose (15), 4‐deoxy‐4‐fluorogalactose (20), or 4‐deoxygalactose (27). These trisaccharides have been designed for th
Synthesis of Protected Hexp-(1 → 4)-β-D-GlcpNAc-(1 → 2)-α-D-Manp-(1 → O)(CH2)7CH3 Sequences (Hex: β-D-Glc, 4-deoxy-4fluoro-β-D-Gal, or 4-deoxy-β-D-Gal) Using a Glc-GlcNPhth Donor, Eventually Fluorinated or Deoxygenated at the Oligosaccharide Level. -The title trisaccharide derivatives are prepared