Intramolecular Michael addition of benzylamine to sugar derived α,β-unsaturated ester: a new diastereoselective synthesis of a higher homologue of 1-deoxy-L-ido-nojirimycin
Intramolecular Michael addition of benzylamine to sugar derived α,β-unsaturated ester: a new diastereoselective synthesis of a higher homologue of 1-deoxy-L-ido-nojirimycin
Intramolecular Michael addition of benzylamine to sugar derived α,β-unsaturated ester: a new diastereoselective synthesis of a higher homologue of 1-deoxy-L-ido-nojirimycin
作者:Vijaya N. Desai、Nabendu N. Saha、Dilip D. Dhavale
DOI:10.1039/a905440e
日期:——
The diastereoselective intramolecular Michael addition of the benzylamine generated in situ from hemiacetal 3 leads to the lactone 4a with the required homoazasugar ring skeleton; reduction of the lactone functionality and removal of the protecting groups afford 1-deoxy-L-ido-homonojirimycin.