Yao Xue Xue Bao. 1997 Jun; 32(6): 473-5.
[Isolation and structure determination of xanthone glycosides of Anemarrhena asphodeloides]
Research Laboratory of Natural and Synthetic Drugs, College of Pharmacy, Second Military Medical University, Shanghai 200433.
Xilingzhimu, the rhizomes of Anemarrhena asphodeloides Bunge (Liliaceae), has been prescribed as antipyretic, anti-inflammatory, diuretic and hypoglycemic agents in Chinese traditional medicine. In this paper, two xanthone glycosides I and II, were isolated from Xilingzhimu by conventional method. The structures of I and II were identified on the basis of chemical reactions and UV, IR, 1HNMR, 13CNMR and DEPT. Compound I was identified as mangiferin and II is a new compound, named neomangiferin. Its structure is 7-O-beta-D-glucopyranosyl-mangiferin.