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  • Title: Trisaccharides from Marsdenia roylei.
    Author: Kumar A, Khare A, Khare NK.
    Journal: Phytochemistry; 1999 Oct; 52(4):675-9. PubMed ID: 10570829.
    Abstract:
    The structures of two novel trisaccharides viz. royleose and deniose isolated from Marsdenia roylei were elucidated with the help of modern physico-chemical techniques and chemical transformations. They were defined as O-beta-D-oleandropyranosyl-(1-->4)-O-beta- D-cymaropyranosyl-(1-->4)-beta-D-oleandropyranose and O-beta-D-oleandropyranosyl-(1-->4)-O-beta-D-digitoxopyranosyl++ +-(1-->4)- beta-D-oleandropyranose respectively. This is the first report on the isolation of trisaccharides of rare deoxy sugars in free state from nature.
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