ALL-ALPHA-D-LINKED TETRASACCHARIDE AND PENTA-SACCHARIDE SUBSTRUCTURESOF TRESTATIN-A BY BLOCK SYNTHESES WITH TRIFLIC ANHYDRIDE AS PROMOTER

Authors
WESSEL HP MAYER B ENGLERT G
Citation
Hp. Wessel et al., ALL-ALPHA-D-LINKED TETRASACCHARIDE AND PENTA-SACCHARIDE SUBSTRUCTURESOF TRESTATIN-A BY BLOCK SYNTHESES WITH TRIFLIC ANHYDRIDE AS PROMOTER, Carbohydrate research, 242, 1993, pp. 141-151
Citations number
16
Journal title
Carbohydrate research → ACNP
ISSN journal
00086215
Volume
242
Year of publication
1993
Pages
141 - 151
Database
ISI
SICI code
0008-6215(1993)242:<141:ATAPS>2.0.ZU;2-K
Abstract
The perbenzylated maltosyl and maltotriosyl fluorides 6 and 16 were tr eated with a-O-benzyl-4,6-O-benzylidene-alpha,alpha-trehalose (7) usin g triflic anhydride as a promoter to give all-alpha-D-linked tetra- an d penta-saccharides which were finally deblocked to the free oligosacc harides 4-O-alpha-maltosyl- 9 and 4-O-alpha-maltotriosyl-alpha,alpha-t rehaloses 18. The H-1 NMR spectra of some of the compounds were fully analyzed by 1D TOCSY and ROESY experiments.