Asymmetric routes to azasugars from chiral bicyclic lactams. Synthesis of 1,4-dideoxy-1,4-imino-D-lyxitol; L-deoxymannojirimycin; rhammo-1-deoxynojirimycin and 1-deoxy-6-epicastanospermine.

Citation
Ai. Meyers et al., Asymmetric routes to azasugars from chiral bicyclic lactams. Synthesis of 1,4-dideoxy-1,4-imino-D-lyxitol; L-deoxymannojirimycin; rhammo-1-deoxynojirimycin and 1-deoxy-6-epicastanospermine., TETRAHEDRON, 55(29), 1999, pp. 8931-8952
Citations number
52
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON
ISSN journal
00404020 → ACNP
Volume
55
Issue
29
Year of publication
1999
Pages
8931 - 8952
Database
ISI
SICI code
0040-4020(19990716)55:29<8931:ARTAFC>2.0.ZU;2-E
Abstract
By employing the appropriate chiral bicyclic lactams, the asymmetric total synthesis of four enantiopure azasugars mentioned in the title were success fully achieved. A series of diastereoselective oxidations (OsO4/NMO) follow ed by diastereoselective reductions (BH3, 9-BBN) gave good yields of the tr isubstituted (16) and tetrasubstituted (2,3,4) pyrrolidine and piperidines respectively. (C) 1999 Elsevier Science Ltd. All rights reserved.