174
5 Carbohydrates
~:20~
HO
HO~H ~:~~2 0
HO
OH
H
OH
H
OH
a-D-Glucopyranosyl-(l ~ 4)- [a- D-glucopyranosyl-(l ~ 6)] a- Dglucopyranose [a-D-Glcp-(l ~ 4)[a-D-Glcp-(l ~ 6)]-a-D-Glcp]
or: 4,6-Di -0-( a-D-glucopyranosyl)-a-D-glucopyranose
S.13.2
Oligosascharides without Free Hemiacetal Group
Oligo saccharides linked exclusively through their anomeric hydroxy
groups can generally be named in a sequential manner as glycosyl(glycosyl}n glycosides. For trisaccharides in particular a second naming method
is in use, centering on the most senior individual component potentially
located in the interior.
~
:H20~H
OH
H
HO
H HO 0
HOH2C~
H HO
H
CH20H
HO H
13-D-Fructofuranosyl
a- D-glucopyranoside
[13-D-Fruf-(2 H l)-a-D-Glcp]
(trivially: Sucrose, Saccharose)
CH2CI
C~H OH
OH
H
H
H HO 0
CIH2C~
H HO
H
CH20H
HO H
6-Chloro-6-deoxy-13-D-fructofuranosyl 4,6-dichloro-4,6-dideoxya- D-galactopyranoside