A new anthraquinone glycoside was isolated from the hydrophilic fraction of the Chinese medicinal plant Rhynchotechum vestitum. Its structure was determined as damnacanthol-11-O-beta-glucoside by spectroscopic evidence. The occurrence of rubiadin-1-methylether-3-O-beta-primeveroside, lucidine-3-O-beta-primeveroside and rubiadin-3-O-beta-primeveroside in the plant is reported for the first time.
anthraquinone glycosides, Gesneriaceae, Rhynchotechum vestitum, damnacanthol-11-O-beta-glucoside, rubiadin-1-methyl ether-3-O-beta-primeveroside, lucidine-3-O-beta-primeveroside, rubiadin-3-O-beta-primeveroside
Publication DOI: 10.1016/S0031-9422(98)00079-XJournal NLM ID: 0151434Publisher: Elsevier
Institutions: Institute of Pharmacognosy, University of Graz, Graz, Austria, Department ofbPharmacognosy, Faculty of Pharmacy, University of Sofia, Sofia, Bulgaria, Institute of Pharmaceutical Chemistry, University of Frankfurt am Main, Frankfurt am Main, Germany, Department of Pharmacognosy, Faculty of Pharmacy, University of Ankara, Ankara, Turkey
Methods: 13C NMR, 1H NMR, NOE, EI-MS, IR, UV, extraction, CC, melting point determination, HMBC, HMQC, extractin