72076-17-6Relevant academic research and scientific papers
Unique phenyl ether type biflavonoids, zizyflavosides A and B with biomimetic synthesis for zizyflavoside A
Mostafa, Mahmoud,Takano, Fumihide,Ohta, Tomihisa
, p. 2497 - 2509 (2010)
During our investigation of Zizyphus spina-christi (L.) Willd. leaves for anti-inflammatory activity, eight compounds were characterized. Two are new phenyl ether type biflavonoids, which were assigned as zizyflavosides A (1) and B (2). The structures of 1 and 2 were determined by spectroscopic analyses including 1D, 2D NMR and MS spectroscopic and chemical data. The other isolated compounds were known flavonoids kaempferol-3-O-rutinoside (5), quercetin-3-O-rutinoside (6), 3',5'-di-C-β-D-glucosylphloretine (7), quercetin-3-O-[β-D-xylosyl-(1→2)-α-L-rhamnoside] -4'-O-α-L-rhamnoside (8), epiafzelechin (9) and quercetin-3-O-[β-D- xylosyl-(1→2)-α-L-rhamnoside] (10). Zizyflavoside A was synthesized from quercetin-3-O-rutinoside and kaempferol-3-O-rutinoside using laccase as an enzyme and this biomimetic synthesis could be indication to its biosynthetic pathway. The Japan Institute of Heterocyclic Chemistry.
ACIDIC DYSTROGLYCAN OLIGOSACCHARIDE COMPOUND AND METHOD FOR MAKING SAME
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, (2019/07/20)
A synthetic dystroglycan oligosaccharide comprising Formula (I) wherein a repeating disaccharide motif consists of Glucuronic Acid (ClcA) and Xylose (Xyl) having a defined glycosyl connection GlcA-β-(1→3)-Xyl-α-(1→3)-GlcA; wherein either end of the synthetic dystroglycan oligosaccharide is conjugatable with chemical or biological vehicle or support; wherein the non-reducing terminal (II) is conjugatable with any oligosaccharides or groups that can modify a hydroxyl functionality; and wherein the reducing terminal is conjugatable with any tags, oligosaccharides or anything that can modify a hydroxyl functionality.
