42833-68-1Relevant articles and documents
Discovery of novel xanthone derivatives as xanthine oxidase inhibitors
Hu, Lina,Hu, Honggang,Wu, Weifeng,Chai, Xiaoyun,Luo, Jianfei,Wu, Qiuye
scheme or table, p. 4013 - 4015 (2011/08/02)
Xanthine oxidase is the key enzyme that catalyzes the oxidation of hypoxanthine to xanthine and then to uric acid. In this study, a series of xanthone derivatives were synthesized as effective and a new class of xanthine oxidase inhibitor. Compounds 8a, 8c, 8i, 8g and 8r showed good inhibition against xanthine oxidase. The presence of a cyano group at the para position of benzyl moiety turned out to be the preferred substitution pattern. Molecular modeling studies were performed to gain an insight into its binding mode with xanthine oxidase, and to provide the basis for further structure-guided design of new non-purine xanthine oxidase inhibitors associated with the xanthone framework.
γ-Pyrone compounds. II: Synthesis and antiplatelet effects of tetraoxygenated xanthones
Lin,Liou,Ko,Teng
, p. 1109 - 1112 (2007/10/02)
Norathyriol and its analogues, 1,3,5,6-, 3,4,5,6-, 3,4,6,7- and 2,3,6,7- tetrahydroxyxanthone, were synthesized from benzophenone precursors by Friedel-Crafts acylation and subsequent base-catalyzed cyclization to eliminate methanol. Both 3,4,6,7- and 2,3,6,7-tetrahydroxyxanthone tetraacetate showed potent anti-platelet aggregation effects on arachidonic acid-induced platelet aggregation. 3,4,6,7-Tetrahydroxyxanthone tetraacetate and 1,3,5,6-tetrahydroxyxanthone showed potent and significant anti-platelet aggregation effects on collagen-induced platelet aggregation.
