7. MONOSACCHARIDES AND OLIGOSACCHARIDES
307
SCHEME (I) Continued
L-FAMILY
CHO
CH 3 ·CH 3
6-Deoxy-4-0methyl-L-glucose
L-Thevetose {27)
CHO
—· CH 3 CHO
CH 3
6-Deoxy-Lglucose
CHO
[L-Glucose]
[L-Mannose]
CH 3
6-Deoxy-Lmethyl-L-mannose
mannose
L-Acofriose {28)
L-Rhamnose§
CHO
CH 3
6-Deoxy-L• L-Galactose
L-Fucose1f
CHO
CHO
»CH 3
CH 3
6-Deoxy-3-0methyl-L-talose
L-Acovenose (30)
L-Talose
CH 3
6-Deoxy-Ltalose
L-Talomethylose (31)
f The sugar has been variously called D-isorhamnose, D-epirhamnose, isorhodeose,
and chinovose. It is found in glycosides from Cincona spp. (Rubiaceae) {26). D-Quinovose
has, until recently, been associated with the plant kingdom. Hydrolyzates of the venom
of the holothurian (sea cucumber) Actinopyga agassizi yield the sugar along with D-xylose,
3-O-methyl-D-glucose and D-glucose itself {26a).
% The sugar is found in glycosidic combination, along with D-glucose and L-rhamnose
in glycosides obtained from members of the Convolvulaceae (84).
§ See Section V,K.
If See Section V,H.
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