4Corey,E.J. Tofals Yn the sisof Ginkgolide A[J].Tetrahed ronletters,1988,29(26):3205-3206.
5Nakanish K. Biosyn the sisof Gink golide B, it sditer Denoidnature,and origin of the tert-Butyl group[J].Journal of the American chemical Society,1971,93(14):3546-3547.
6SEO H J, SURH Y J. Eupatilin, a pharmacologically active flavone derived from Artemisia plants, induces apoptosis in human promyelocytic leukemia cells[J]. J Mutation Research, 2001, 496(2): 191- 198.
7YE Min, LI Yah. Determination of flavonoids in semen cuscutae by RP- HPLC[J]. J Pharm and Bio Analysis, 2002, 28(4): 621-628.