Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2006-01-10
2006-01-10
Maier, Leigh C. (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S128000, C514S026000
Reexamination Certificate
active
06984725
ABSTRACT:
In accordance with the present invention there is provided a method for the separation of a triglycoalkaloid in which the triglycoside portion comprises α-L-rhamnopyranosyl-(1→2gal)-O-β-D-glucopyranosyl-(1→3gal)-β-D-galactopyranose (or 6-deoxy-α-L-mannopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-galactopyranoside) (‘an rhamnose-glucose-galactose triglycoalkaloid’) from a triglycoalkaloid in which the triglycoside portion is α-L-rhamnopyranosyl-(1→2glu)-O-α-L-rhamnopyranosyl-(1→4glu)-β-D-glucopyranose (‘a rhamnose-rhamnose-glucose triglycoalkaloid’) in a mixture containing both, the method comprising the steps of:Combining the mixture with a portion of alcoholic solvent;Causing or allowing a substantial portion of the rhamnose-rhamnose-glucose triglycoalkaloid to dissolve, thereby generating an alcoholic solution substantially of the rhamnose-rhamnose-glucose triglycoalkaloid, and a solid substantially comprising the rhamnose-glucose-galactose triglycoalkaloid; andSeparating the solid substantially comprising the rhamnose-glucose-galactose triglycoalkaloid from the solution substantially of the rhamnose-rhamnose-glucose triglycoalkaloid.
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Carter Stephen John
Dalwadi Gautam
Murray Paul Edward
Parkin John Edward
Maier Leigh C.
Merchant & Gould P.C.
Solbec Pharmaceuticals Ltd.
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