Potent glycosidase inhibitors via hetero Diels-Alder reactions: asymmetric synthesis of 5-methyl-trihydroxypyrrolidines
作者:A. Defoin、Th. Sifferlen、J. Streith、I. Dosbaâ、M.-J. Foglietti
DOI:10.1016/s0957-4166(97)00008-6
日期:1997.2
Some straightforward chemical transformations of oxazine diol 4, which was obtained from sorbaldehyde 2 by an asymmetric hetero Diels-Alder reaction followed by osmylation, led to the protected dihydroxypyrrolidine-aldehyde 8a and, after basic epimerisation, to 8b. Reduction of the aldehyde moiety and deprotection gave the potent glycosidase inhibitors 2,5,6-trideoxy-2,5-imino-D-altritol and D-allitol 9a and 9b. (C) 1997 Elsevier Science Ltd. All rights reserved.