Highly stereoselective and stereospecific syntheses of a variety of quercitols from d-(−)-quinic acid
作者:Tzenge-Lien Shih、Ya-Ling Lin、Wei-Shen Kuo
DOI:10.1016/j.tet.2004.11.084
日期:2005.2
The highly stereoselective synthesis of (−)-epi-, (−)-allo- and neo-quercitols as well as stereospecific synthesis of (−)-talo- and (+)-gala-quercitols have been achieved. The general strategy is employing dihydroxylation of the isolated double bond of various kinds of protected chiral (1,4,5)-cyclohex-2-ene-triols, which are derived from d-(−)-quinic acid. The choosing of protecting groups from either
Synthesis of a New Family of Aminocyclitols from D-(-)-Quinic Acid
作者:Tzenge-Lien Shih、Heng-Yi Li、Ming-Shin Ke、Wei-Shen Kuo
DOI:10.1080/00397910802281429
日期:2008.11.3
interest in the synthesis of glycosidase inhibitors, we report herein an efficient synthesis of three new polyhydroxylated amino cyclohexane derivatives (aminocyclitols) that may potentially possess important biological activities. The key step involved the highly stereoselective dihydroxylation of protected azido cyclohexene derivatives 5, 9, and 15, which were easily red from D-(-)-quinic acid. The
Regioselective fluorination in synthesis of deoxyfluoro quercitols from d-(−)-quinic acid
作者:Tzenge-Lien Shih、Wen-Yu Liao、Wen-Chun Yen
DOI:10.1016/j.tet.2014.11.001
日期:2014.12
A facile synthesis of six new deoxyfluoro querciotls from d-(−)-quinicacid is described. The key steps involve the regioselective fluorination as well as highly stereoselective dihydroxylation. These synthetic deoxyfluoro quercitols are considered as potential glycosidase inhibitors.
Epoxidation of Protected (1,4,5)‐Cyclohex‐2‐ene‐triols and Their Acid Hydrolysis to Synthesize Quercitols from<scp>D</scp>‐(−)‐Quinic Acid
作者:Tzenge‐Lien Shih、Ya‐Ling Lin
DOI:10.1081/scc-200063960
日期:2005.7
Highly stereoselective epoxidations have been achieved in both cyclohexylidene acetal and butane 2,3-bisacetal (BBA) protection of (1,4,5)-cyclohex-2-ene-triols. These epoxy derivatives are all derived from D-(-)-quinic acid and can be used for the synthesis of muco-, (+)-epi-, (+)-vibo,(-)- talo, and (-) (-)-gala-quercitols.