Non-natural aldofuranosides as substrates of a β-glucosidase
摘要:
Based on glycosidase inhibitory activities of some known 1,4-iminoalditols, four aldofuranosides, (4-nitro)phenyl beta-D-glucofuranoside, -beta-D-galactofuranoside, -alpha-L-idofuranoside and -alpha-L-altrofuranoside, were identified as possible substrates of glucosidases and galactosidases. Three of them were found to be accepted by the beta-glucosidase from Agrobacterium sp. (C) 2004 Elsevier Ltd. All rights reserved.
Non-natural aldofuranosides as substrates of a β-glucosidase
摘要:
Based on glycosidase inhibitory activities of some known 1,4-iminoalditols, four aldofuranosides, (4-nitro)phenyl beta-D-glucofuranoside, -beta-D-galactofuranoside, -alpha-L-idofuranoside and -alpha-L-altrofuranoside, were identified as possible substrates of glucosidases and galactosidases. Three of them were found to be accepted by the beta-glucosidase from Agrobacterium sp. (C) 2004 Elsevier Ltd. All rights reserved.
Efficient Synthesis of 1,2,3,4,6-Penta-<i>O</i>-acetyl-<scp>L</scp>-idopyranose
作者:Shang-Cheng Hung、Chien-Sheng Chen
DOI:10.1002/jccs.200000173
日期:2000.12
An efficientsynthesis of 1,2,3,4,6-penta-O-acetyl-L-idopyranose 2 from 3,5-O-benzylidene-1,2-O-isopropylidene-α-D-glucofuranose in five steps in 45% overall yield via hydroboration of enol ether, hydrolysis of L-idofuranosyl sugar and acetolysis of 1,6-anhydro-β-L-idopyranose as key steps is described here.
1,6-Anhydro-beta -L-hexopyranoses as valuable building blocks toward the synthesis of L-gulosamine and L-altrose derivatives via the regioselective triflation and benzoylation of 1,6-anhydro-beta -L-idopyranose followed by S(N)2 substitution with various nucleophiles as key steps is described here. (C) 2001 Elsevier Science Ltd. All rights reserved.