Plant Mucilages. XVII. Partial hydrolysis and a Possible Structure of Paniculatan

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Partial acid hydrolysis of paniculatan, the mucous polysaccharide isolated from the inner barks of Hydrangea panculata SIEB., has led to the isolation of five oligosaccharides. Analysis of components, reduction and methylation, and partial degradation studies provided the evidences that they are O-α-(4-O-methyl-D-glucopyranosyluronic acid)-(1→4)-D-galactopyranose, O-α-(D-galactopyranosyluronic acid)-(1→2)-L-rhamnopyranose, O-α-(D-galactopyranosyluronic acid)-(1→2)-O-α-L-rhamnopyranosl-(1→2)-L-rhamnopyranose, O-α-(D-galactopyranosyluronic acid)-(1→2)-O-α-L-rhamnopyranosyl-(1→4)-O-α-(D-galactopyranosyluronic acid)-(1→2)-L-rhamnopyranose, and O-α-(D-glucopyranosyluronic acid)-(1→3)-O-α-(D-galactopyranosyluronic acid)-(1→2)-L-rhamnopyranose. From the accumulated evidence, a possible structure of the polysaccharide was proposed.
社団法人日本薬学会の論文
1977-11-25