✍ Scribed by Jörg Rademann; Richard R. Schmidt
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Complicated oligosaccharides such as dodecasaccharide 1 can be constructed by a new solid-phase strategy. The attachment to the polymeric support (gray sphere) is through a photolabile linker (structure I), and thioglycosides serve as carbohydrate donors. Bn=benzyl, Bz=benzoyl.
A semi-synthetic approach to (1+2)-(r-and (l-3)-a-linked rhamnobioses is presented. The method involves condensation of benzyl2-O-or 3-0-benzoyl-4-0benzyl-a-L-rhamnopyranoside (5) with l-O-acetyl-2,3,6-trideoxy-a,P-DL-glycerohex-2-enopyranos-4-ulose (6)) isolation of the L-L and D-L forms of the res
## Condensation of partially protected rhamnobiose derivatives with l-Oacetyl-2,3,6-trideoxy-cY,P-DL-glycero-hex-2-enopyranos-4-ulose afforded pairs of diastereoisomeric a-linked trisaccharide derivatives to which the configuration was assigned on the basis of spectral and chemical data. Reduction