Asymmetric synthesis of 3-amino-4-hydroxy-2-(hydroxymethyl)pyrrolidines as potential glycosidase inhibitors
作者:Kim L. Curtis、Emma L. Evinson、Sandeep Handa、Kuldip Singh
DOI:10.1039/b711994a
日期:——
Three diastereoisomers of 3-amino-4-hydroxy-2-(hydroxymethyl)pyrrolidine have been synthesised by a divergent route starting from trans-4-hydroxy-L-proline. Regio- and stereoselective introduction of the 3-amino and 4-hydroxyl functional groups was achieved using either a tethered aminohydroxylation reaction or by employing intra- and intermolecular epoxide-opening strategies. Preliminary biological data indicate that two of these novel amino pyrrolidines are moderate inhibitors of β-galactosidase.
The first asymmetric synthesis of (2S,3S,4R)-3-amino-2-hydroxymethyl-4-hydroxypyrrolidine
作者:Kim L. Curtis、John Fawcett、Sandeep Handa
DOI:10.1016/j.tetlet.2005.06.025
日期:2005.8
4R)-3-amino-2-hydroxymethyl-4-hydroxypyrrolidine 5 has been produced in an efficient synthesis from trans-4-hydroxy-l-proline 8. The key step involves a tethered aminohydroxylation of the alkene 7 to introduce regio- and stereoselectively the aminoalcoholfunctionality in the resulting products 6 and 13. Subsequent deprotection steps furnish the target molecule 5 as well as several differentially protected analogues