New Chromone Glycosides from Hypericum Japonicum

摘要

From the aerial part of Hypericum japonicum Thunb. ex Murray, two new chromone glycosides, 5, 7-DOihydrxy-2 K (1-methylpropyl) chromone4- 8-β-glucoside and 5,7 -D ihydroxy- 2-isopropylchromone-8- β-glucoside, were isohaed and their structures were detennined on basis of pescopic evidences.