Synthesis of an unusual branched-chain sugar, 5-C-methyl-l-idopyranose for SAR studies of pyranmycins: implication for the future design of aminoglycoside antibiotics
摘要:
The syntheses of a challenging branched-chain sugar and several L-sugars have been accomplished. Their application in studies of the antibacterial activity of pyranmycins is reported, which could provide new strategies for the future design of aminoglycoside antibiotics. (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.